wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

boichem review

Total questions: 204

Worksheet time: 3hrs 34mins

Name
Class
Date
1.

Root of plant also need oxygen to survive?

a)

True

b)

False

2.

During respiration, (a)   gas enter the plant.

3.

What gas is needed in order to perform respiration at the cellular level?

a)

oxygen

b)

carbon dioxide

c)

hydrogen

d)

nitrogen

4.

Jumbled words

a)

tranpirationi

b)

tranpiratoin

c)

transpiration

d)

tiranpition

5.

Openings in plant leaves for gaseous exchange are called _________

a)

Tomato

b)

Stomata

c)

Stamen

d)

Stems

6.

Plants take in __________

a)

Oxygen

b)

Nitrogen

c)

Carbon dioxide

d)

Water vapour

7.

At night, plants absorb more _________ and release more_______.

a)

Absorb more water and release more energy.

b)

Absorb more Carbon Dioxide and Release more Oxygen.

c)

Absorb more Oxygen and release more Carbon Dioxide.

8.

What is the primary gas exchanged during plant respiration?

a)

Oxygen

b)

Carbon Dioxide

c)

Nitrogen

d)

Hydrogen

9.

Which part of the plant is primarily responsible for gas exchange during respiration?

a)

Roots

b)

Stems

c)

Leaves

d)

Flowers

10.

During the night, plants primarily take in which gas for respiration?

a)

Oxygen

b)

Carbon Dioxide

c)

Nitrogen

d)

Methane

11.

What is the main purpose of respiration in plants?

a)

To produce glucose

b)

To release energy

c)

To absorb sunlight

d)

To produce chlorophyll

12.

Which process in plants is directly opposite to respiration?

a)

Photosynthesis

b)

Transpiration

c)

Germination

d)

Pollination

13.

In which cellular organelle does respiration primarily occur in plants?

a)

Chloroplast

b)

Mitochondria

c)

Nucleus

d)

Ribosome

14.

What happens to the rate of respiration in plants when the temperature increases?

a)

It decreases

b)

It remains the same

c)

It increases

d)

It stops

15.

Which of the following is a byproduct of plant respiration?

a)

Glucose

b)

Oxygen

c)

Carbon Dioxide

d)

Water

16.

Which of the following best describes an ecosystem?

a)

A single species interacting with its environment

b)

A community of organisms interacting with their environment

c)

A group of ecosystems interacting with each other

d)

A single organism in its habitat

17.

Yeast is used in the production of which of the following through fermentation?

a)

Bread

b)

Cheese

c)

Milk

d)

Eggs

18.

What is the primary energy source for anaerobic respiration?

a)

Glucose

b)

Oxygen

c)

Carbon dioxide

d)

Water

19.

Which gas is absorbed by plants during photosynthesis?

a)

Oxygen

b)

Carbon dioxide

c)

Nitrogen

d)

Hydrogen

20.

What type of respiration occurs in the absence of oxygen?

a)

Aerobic respiration

b)

Anaerobic respiration

c)

Photosynthesis

d)

Fermentation

21.

What is a consequence of disrupting the food chain and webs in an ecosystem?

a)

Increased biodiversity

b)

Stable population growth

c)

Species extinction

d)

Balanced nutrient cycling

22.

How do plants contribute to the oxygen cycle in ecosystems?

a)

They release oxygen during photosynthesis

b)

They absorb oxygen during respiration

c)

They release oxygen during fermentation

d)

They absorb oxygen during photosynthesis

23.

What is the primary source of energy in most ecosystems?

a)

Sunlight

b)

Wind

c)

Water

d)

Soil

24.

Which of the following is an example of a consumer in an ecosystem?

a)

Sunflower

b)

Deer

c)

Moss

d)

Mushroom

25.

Which of the following is NOT a component of an ecosystem?

a)

Living organisms

b)

Abiotic factors

c)

Soil

d)

Rocks

26.

What is an example of a producer in an ecosystem?

a)

Lion

b)

Grass

c)

Rabbit

d)

Hawk

27.

What would happen if there were no producers in an ecosystem?

a)

Consumers would starve

b)

Decomposers would die

c)

Oxygen levels would decrease

d)

The food chain would collapse

28.

What process do plants use to make their own food?

a)

Aerobic respiration

b)

Photosynthesis

c)

Anaerobic respiration

d)

Fermentation

29.

Which of the following is NOT a product of aerobic respiration?

a)

Carbon dioxide

b)

Water

c)

Glucose

d)

Oxygen

30.

In a food chain, what breaks down dead material and helps turn it into nutrients in the soil?

a)

producers

b)

decomposers

c)

animals

d)

water

31.

What gas is needed in order to perform respiration at the cellular level?

a)

oxygen

b)

carbon dioxide

c)

hydrogen

d)

nitrogen

32.

Cellular respiration takes place in the cells of all organisms.

a)

false

b)

true

33.

All living organisms respire to get energy from food.

a)

true

b)

false

34.

Root of plant also need oxygen to survive?

a)

True

b)

False

35.

Name this process

a)

respiration

b)

photosynthesis

c)

gaseous exchange

36.

Product of photosynthesis are

a)

carbon dioxide and glucose

b)

oxygen and glucose

c)

water and glucose

37.

In anaerobic respiration, _______ is not required.

a)

ATP

b)

Glucose

c)

Oxygen

d)

None of these

38.

_________ and respiration processes are complementary to each other.

a)

Photosynthesis

b)

Aerobic respiration

c)

Fermentation

39.

Which of these are the products of aerobic respiration?

a)

Oxygen

b)

38 ATP

c)

2 ATP

d)

Water

e)

Carbon dioxide

40.

The two types of respiration are:-


Select all that apply...

a)

Arabic Respiration

b)

Aerobic Respiration

c)

Anaorebic Respiration

d)

Anaerobic Respiration

e)

None of the above

41.

Identify 'x' in the given equation and also find which respiration is it.

(C6H12O6 + X -----> CO2 + H2O + Energy)


Select Accordingly

a)

Oxygen [6O2] , Aerobic Respiration

b)

Oxygen [O2], Anaerobic Respiration

42.

Which of the following is correct about respiration?

a)

Occurs during day and night

b)

Plant only

c)

Need sunlight

d)

Use carbon dioxide (Carbon dioxide in)

43.

Select the correct term for the following definition:

"The water transport system in plants."

a)

Villi

b)

Bronchi

c)

Bolus

d)

Xylem

44.

Select which of the following statements are true for xylem.

a)

Tubular shape with no cross walls.

b)

Transportation of food and nutrients.

c)

Elongated, tubular shape with thin walled sieve tubes.

d)

Occupy the center of the vascular bundle.

e)

Water and mineral transport from roots to aerial parts of the plant.

45.

Recall the main function of a xylem cell.

a)

To transport nutrients (mainly sucrose) to different parts of a plant.

b)

To make energy for the plant via photosynthesis.

c)

To transport carbon dioxide to the leaves for photosynthessis.

d)

To transport water to different parts of plant.

46.

Recall what is dissolved in the water in the xylem.

a)

Glucose

b)

Amino acids

c)

Mineral ions

d)

Starch

47.

Recall what the pathway of water from roots to leaves is called.

a)

Respiration

b)

Translocation

c)

Transpiration stream

d)

Evaporation

48.

Recall which of the following form part of the xylem.

a)

Sieve plates

b)

Trachieds

c)

Bundle sheath cells

d)

Vessels

49.

Recall what substance is used to thicken and strengthen xylem walls in woody plants.

a)

Protein

b)

Mineral ions

c)

Lignin

d)

Glucose

50.

Select the correct term for the following definition:

"The nutrient transport system in plants."

a)

Enzyme

b)

Guard cells

c)

Phloem

d)

Proteins

51.

Select which of the following statements are true for phloem.

a)

Bi-directional movement (up and down stem).

b)

Elongated, tubular shape with thin walled sieve tubes.

c)

Transportation of feed and nutrients.

d)

Occupy the centre of the vascular bundle.

e)

Water and mineral transport from roots to aerial parts of the plant.

52.

Recall the main funtion of a phloem cell.

a)

To transport nutrients (mainly sucrose) to different parts of a plant.

b)

To transport water to different parts of a plant.

c)

To make energy for the plant via photosynthesis.

d)

To provide structural support to a plant.

53.

Recall which of the following form part of the phloem.

a)

Sieve-tube elements

b)

Trachieds

c)

Vessels

d)

Companion cells

54.

Recall that the movement of food in the phloem is called.

a)

Translocation

b)

Transpiration stream

c)

Evaporation

d)

Respiration

55.

What are the functions of the roots? (Select two answers)

a)

Absorbing Water and Minerals

b)

Attracting Insects

c)

Anchoring the Plant

d)

Performing Photosynthesis

e)

Making Nectar

56.

What is the cell on the right of this image?

a)

A xylem cell

b)

A guard cell

c)

A palisade cell

d)

A root hair cell

57.

Where does water enter the plant?

a)

The stem

b)

The roots

c)

The leaves

d)

The flower

58.

What does the Xylem transport?

a)

Water and Minerals

b)

Glucose

c)

Blood

d)

Chlorophyll

59.

What does the Phloem transport?

a)

Water and Minerals

b)

Glucose

c)

Blood

d)

Chlorophyll

60.

In a plant, water is transported from the roots to the...

a)

Flowers

b)

Seeds

c)

Leaves

d)

Phloem

61.

Why is it good for roots to have a high surface area?

4 lines
62.

Which is BIDIRECTIONAL? (transports both ways around a plant)

a)

Xylem

b)

Phloem

63.

What is water used for in the leaves of the plant?

a)

Drinking

b)

Respiration

c)

Photosynthesis

d)

Transport

64.
Opening that allows gas exchange
a)
Stomata
b)
Leaves
c)
Roots
d)
Vascular tissue
65.

Phloem tubes transport substances..

a)

From the roots to the stem and leaves

b)

From the leaves to the rest of the plant

66.

When photosynthesis takes place during the day, stomata will...

a)

open

b)

close

c)

static

d)

hot

67.

Recall what is dissolved in the water in the xylem.

a)

Glucose

b)

Amino acids

c)

Mineral ions

d)

Starch

68.

Recall the main funtion of a phloem cell.

a)

To transport nutrients (mainly sucrose) to different parts of a plant.

b)

To transport water to different parts of a plant.

c)

To make energy for the plant via photosynthesis.

d)

To provide structural support to a plant.

69.
Which of the following are NOT found in animal cells
a)
chloroplasts and cytoplasm
b)
chloroplasts and cell wall
c)
cell wall and cell membrane
d)
mitochondria and nucleus
70.
Which of the following, found ONLY in plant cells, provides structure?
a)
cell wall
b)
chloroplast
c)
mitochondria
d)
vacuole
71.
I am only found in a plant cell. What am I?
a)

cell membrane

b)
mitochondria
c)
cytoplasm
d)
chloroplast
72.

Where do plants get the energy for photosynthesis to take place?

a)

nutrients in the soil

b)

the sun

c)

chlorophyll

d)

bee pollination

73.

The openings that are found in the leaves of plants are called:

a)

Stomata

b)

Chlorophyll

c)

Xylem

d)

Chloroplast

74.

The process of photosynthesis takes place in the:

a)

Leaves of the Plant.

b)

Stem of the plant.

c)

Roots of the plant.

d)

All of the above.

75.

Photosynthesis uses sunlight to make sugar from water and _______________.

a)

carbon monoxide

b)

oxygen

c)

carbon dioxide

d)

sodium bicarbonate

76.

What could happen if a plant's phloem does not work properly?

a)

Photosynthesis will not take place

b)

The plant might be short of water

c)

The plant might be short of food

d)

The plant will not be able to dissolve minerals

77.
TRUE or FALSE?
All of the carbon in existence is continually recycled in the carbon cycle.
a)
True
b)
False
78.

How is the carbon cycle similar to the water cycle?

a)

Both involve liquid substances falling to the Earth from the atmosphere?

b)

Neither process works at low temperature.

c)

Both involve the transfer of substances between animals, plants, and the Earth.

d)

Both involve the transfer of substances between the earth and outer space.

79.
Carbon can be found in...
a)
The atmosphere
b)
Soil
c)
Fossil fuels
d)
All of the above
80.

This reservoir of carbon is made up of the ground and contains soil, rocks, fossil fuels, and other geological formations.

a)

Atmosphere

b)

Biosphere

c)

Hydrosphere

d)

Lithosphere

81.

This reservoir of carbon is the air and gasses that surround the Earth.

a)

Atmosphere

b)

Biosphere

c)

Hydrosphere

d)

Lithosphere

82.

This reservoir of carbon is all the water on Earth including in the clouds, oceans, rivers, streams, and underground water supplies.

a)

Atmosphere

b)

Biosphere

c)

Hydrosphere

d)

Lithosphere

83.

This reservoir of carbon contains all life on Earth.

a)

Atmosphere

b)

Biosphere

c)

Hydrosphere

d)

Lithosphere

84.
Respiration is the process by which animals take in _____ and release _____. 
a)
photosynthesis, air
b)
carbon, oxygen
c)
oxygen
d)
oxygen, carbon dioxide
85.

Which gas do animals release, that plants depend on for survival?

a)

Carbon dioxide

b)

Oxygen

c)

Sunlight

d)

Water

86.

Which of the following processes does NOT move carbon to the atmosphere?

a)

Animal respiration (Breathing)

b)

Volcanic eruption

c)

Photosynthesis

d)

Burning fossil fuels

87.

Organisms that do not decompose can be buried and become what part of the lithosphere?

a)

water

b)

nutrients

c)

air

d)

fossil fuels

88.

What is a way that carbon can move?

a)

From hydrosphere to the biosphere through drinking water

b)

From lithosphere to hydrosphere through weathering and erosion

c)

From the atmosphere to lithosphere through diffusion

d)

From the atmosphere to the biosphere through respiration (breathing)

89.
Which one of these does not add CO2 to the atmosphere?
a)
cooking with gas
b)
planting trees
c)
burning wood
d)
riding in a bus
90.
What is deforestation?
a)
Clearing Earth's forests on a massive scale
b)
Eating too much vegetables
c)
Going to a forest and pulling weeds
d)
Clearing the five trees in my backyard
91.

How do plants affect the air that animals and people breathe?

a)

Plants use oxygen from the air to make their own food

b)

Plants release pollution into the air

c)

Plants take in carbon dioxide and release oxygen

d)

Plants take in oxygen and release carbon dioxide

92.

Why does cutting down trees increase global warming?

a)

trees soak up carbon dioxide and removing them causes more carbon to stay in the atmosphere

b)

trees provide shade which counteracts global warming

c)

trees absorbs the sun's energy without radiating back into the atmosphere

d)

trees drain greenhouse gases like methane from soil

93.

Why is burning fossil fuels harmful?

a)

they cause cancer

b)

They can get extremely hot

c)

it increases the amount of carbon dioxide in the atmosphere

d)

this would destroy fossils

94.
The average temperature of the surface of Earth has increased approximately 1°C in the past century. Which reason best explains this increase in temperature?
a)
lower levels of ozone in the atmosphere
b)
lower levels of nitrogen in the atmosphere
c)
higher levels of carbon dioxide and other greenhouse gases in the atmosphere
d)
higher levels of oxygen in the atmosphere
95.
oxygen is a gas produced by _ and used by  _ 
a)
plants and animals 
b)
photosynthesis and carbon dioxide 
c)
animals and plants 
d)
carbon dioxide and photosynthesis
96.
if there is a fire in a forest, there will be less _ in the environment?
a)
nitrogen
b)
oxygen
97.
All of the carbon in existence is continually recycled in the carbon cycle
a)
True
b)
False
98.

Subduction and Volcanic eruptions are part of which carbon cycle?

a)

Geological

b)

Biological

99.

Decomposition and Photosynthesis and part of which carbon cycle?

a)

Geological

b)

Biological

100.

Carbon enters the soil through dead plant or animal matter.

a)

Decomposition

b)

Respiration

c)

Photosynthesis

d)

Diffusion

101.

Organic matter, burred over millions of years

a)

Fossil Fuels

b)

Decomposition

c)

Combustion

d)

Subduction

102.
What does NOT produce carbon dioxide?
a)
Photosynthesis
b)
Burning Fossil Fuels
c)
Animal respiration
d)
Plants decaying
103.
Combustion is another word for __________.
a)
Transportation
b)
Respiration
c)
Fossil Fuels
d)
Burning
104.
TRUE or FALSE?
All of the carbon in existence is continually recycled in the carbon cycle.
a)
True
b)
False
105.
Organisms that do not decompose can be buried and become what?
a)
water
b)
nutrients
c)
air
d)
fossil fuels
106.
Carbon can be found in...
a)
The atmosphere
b)
Soil
c)
Fossil fuels
d)
All of the above
107.
Which of the following removes carbon from the atmosphere?
a)
Combustion
b)
Respiration
c)
Photosynthesis
d)
Death
108.
What process occurs when coal (fossil fuel) is used for energy?
a)
Decomposition
b)
Combustion
c)
Pressurization 
d)
Respiration 
109.
Respiration is the process by which animals take in _____ and release _____. 
a)
photosynthesis, air
b)
carbon, oxygen
c)
oxygen
d)
oxygen, carbon dioxide
110.
When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.
a)
Water
b)
Atmosphere
c)
Sun
d)
Air
111.
In the carbon cycle, producers take in the gas __
a)
carbon dioxide
b)
oxygen
c)
nitrogen
d)
carbon monoxide
112.
How does the carbon in grass become part of a lion?
a)
The lion eats the grass
b)
Carbon from grass doesn't end up in a lion. 
c)
The carbon ends up in the lion's food chain. 
d)
The lion breathes in carbon given out by the plant
113.
If the plant population decreased, the amount of carbon would _________.
a)
Stay the same
b)
Increase
c)
Decrease
114.

Which gas do plants release, that humans depend on for survival?

a)

Water

b)

Carbon Dioxide

c)

Oxygen

d)

Sugar

115.
All of the carbon in existence is continually recycled in the carbon cycle
a)
True
b)
False
116.
Which of the following removes carbon from the atmosphere?
a)
Combustion
b)
Respiration
c)
Photosynthesis
d)
Death
117.
Which process converts carbon in the form of sugar into carbon dioxide gas?
a)
Bioremediation
b)
Photosynthesis
c)
Respiration
d)
Transpiration
118.
Combustion is another word for __________.
a)
Transportation
b)
Respiration
c)
Fossil Fuels
d)
Burning
119.
Organisms that do not decompose can be buried and become what?
a)
water
b)
nutrients
c)
air
d)
fossil fuels
120.
Carbon can be found in...
a)
The atmosphere
b)
Soil
c)
Fossil fuels
d)
All of the above
121.
What process occurs when coal (fossil fuel) is used for energy?
a)
Decomposition
b)
Combustion
c)
Pressurization 
d)
Respiration 
122.
When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.
a)
Water
b)
Atmosphere
c)
Sun
d)
Air
123.
How do living organisms return carbon to the atmosphere in the carbon cycle?
a)
respiration and photosynthesis
b)
 decomposition and respiration
124.

The circulation of the element Carbon among Earth's atmosphere, land, oceans, and organisms is called _____________.

a)

the Carbon Cycle

b)

the Oxygen Cycle

c)

the Carbon dioxide Cycle

d)

the Water Cycle

125.

When animals eat plants, the carbon that the plant contains is absorbed by the animals.

a)

True

b)

False

126.

How do animals get carbon?

a)

By eating plants and or other animals.

b)

They absorb it from the atmosphere.

c)

From the ground

d)

They do not get carbon from anywhere.

127.

What are fossil fuels made from?

a)

Plants and animals that are buried underground for millions of years.

b)

They absorb it from the atmosphere.

c)

Water

d)

Wind

128.

When humans EXHALE, we release __________________.

a)

Oxygen

b)

Carbon Dioxide

c)

Nitrogen

d)

Water

129.

What is CO2?

a)

Carbon Monoxide

b)

Carbon Trioxide

c)

Carbon Dioxide

d)

Oxygen

130.

Which of the following are fossil fuels?

a)

Coal, water, oil

b)

Oxygen, coal, oil

c)

Coal, Oil, Natural Gas

d)

None of the above

131.

How is the carbon cycle similar to the water cycle?

a)

Both involve liquid substances falling to the Earth from the atmosphere?

b)

Neither process works at low temperature.

c)

Both involve the transfer of substances between animals, plants, and the Earth.

d)

Both involve the transfer of substances between the earth and outer space.

132.

What microscopic (tiny) organism absorbs the CO2 at the surface of water?

a)

Algae

b)

Plants

c)

Phytoplankton

d)

Plankton

133.

True or false. Carbon dioxide is a greenhouse gas.

a)

True

b)

False

134.

Is carbon dissolved at the surface of the ocean or in the deep ocean?

a)

Surface

b)

Deep

135.

What type of bonding does this picture show?

a)

Ionic

b)

Covalent

136.

What type of bonding does this picture show?

a)

Ionic

b)

Covalent

137.

Valence electrons are shared

a)

Ionic bonds

b)

Covalent bonds

138.

Valence electrons are transferred

a)

Ionic bonds

b)

Covalent bonds

139.

The chemical bond between a non-metal and another non-metal will be a ________ bond.

a)

metal

b)

ionic

c)

covalent

d)

polar

140.

The chemical bond between a metal and a non-metal will be a _____ bond.

a)

metal

b)

ionic

c)

covalent

d)

polar

141.

Carbon and Oxygen will make a ___________ bond.

a)

ionic

b)

covalent

c)

metallic

142.

Sodium and Bromine will make a _____ bond.

a)

ionic

b)

covalent

c)

metallic

143.

MgO

a)

ionic

b)

covalent

c)

metallic

144.

NaCl

a)

ionic

b)

covalent

c)

metallic

145.

CaO

a)

ionic

b)

covalent

c)

metallic

146.

KCl

a)

ionic

b)

covalent

c)

metallic

147.

H2O

a)

ionic

b)

covalent

c)

metallic

148.

C6H12O6

a)

ionic

b)

covalent

c)

metallic

149.

CH4

a)

ionic

b)

covalent

c)

metallic

150.

CO2

a)

ionic

b)

covalent

c)

metallic

151.

NH3

a)

ionic

b)

covalent

c)

metallic

152.

S02

a)

ionic

b)

covalent

c)

metallic

153.

KI

a)

ionic

b)

covalent

c)

metallic

154.

KF

a)

ionic

b)

covalent

c)

metallic

155.
What kind of chemical bond forms between a metal and a nonmetal?
a)
Covalent bond
b)
Ionic bond
c)
Can be either covalent or ionic
d)
Hydrogen bond
156.
What kind of bond forms between two nonmetals?
a)
Covalent bond
b)
Ionic bond
c)
Can be either covalent or ionic
d)
Hydrogen bond
157.
What is the name for an ion with a positive charge?
a)
Anion
b)
Cation
c)
Dogion
d)
Ion
158.
What is the name for an ion with a negative charge?
a)
Anion
b)
Cation
c)
Dogion
d)
Ion
159.

What kind of bond forms when one kind of atom gives electrons to another kind of atom?

a)

Chemical bond

b)

Ionic bond

c)

Covalent bond

d)

Electron bond

160.
What kind of bond forms when atoms share electrons?
a)
Chemical bond
b)
Ionic bond
c)
Covalent bond
d)
Electron bond
161.
Which of these is covalent?
a)
NaCl
b)
Pb(NO3)2
c)
CO2
d)
AlCl3
162.
Beryllium will ____ valence electrons when forming an ionic bond.
a)
lose 4
b)
gain 4
c)
lose 2
d)
gain 2
163.
Elements on the LEFT side of the periodic table will most likely form:
a)
Positive ions
b)
Negative ions
c)
Neutral Ions
d)
None of these
164.
When an atom's outer energy levels are not filled completely, the atom ___.
a)
is very stable
b)
is a noble gas
c)
cannot form a compound
d)
can gain, lose, or share electrons
165.
Predict the bond that will form between Be and F.
a)
Ionic
b)
Covalent
166.
Predict the bond that will form between Se and Cl.
a)
Ionic
b)
Covalent
167.
Predict the bond that will form between Sr and S.
a)
Ionic
b)
Covalent
168.
What is a valence electron?
a)
an electron that is found in the outermost shell of an atom. 
b)
an electron found in the innermost shell of an atom.
c)
an electron found in the middle shell.
169.
Ionic or covalent?
C  O
a)
Ionic
b)
Covalent
170.
Ionic or covalent?
Na  Br
a)
Ionic
b)
Covalent
171.
Ionic or covalent?
K  Br
a)
Ionic
b)
Covalent
172.
Ionic or covalent?
H  O
a)
Ionic
b)
Covalent
173.
Ionic or covalent?
C  H
a)
Ionic
b)
Covalent
174.
Ionic or covalent?
Na  Cl
a)
Ionic
b)
Covalent
175.
Ionic or covalent?
Na  F
a)
Ionic
b)
Covalent
176.
Ionic or covalent?
N  H
a)
Ionic
b)
Covalent
177.
Ionic or covalent?
Ca  Cl
a)
Ionic
b)
Covalent
178.
Ionic or covalent?
H  H
a)
Ionic
b)
Covalent
179.
What is the rule for figuring out if it is ionic or covalent?
a)
Covalent bonds form between two metals.
b)
Ionic bonds form between two metals.
c)
Covalent bonds form between a metal and a non-metal.
d)
Ionic bonds form between a metal and a non-metal.
180.
What is a cation? 
a)
a metal with a negative (-) charge
b)
a non-metal with a negative (-) charge 
c)
a metal with a positive (+) charge 
d)
a non-metal with a positive (+) charge
181.
What is a anion? 
a)
a metal with a negative (-) charge
b)
a non-metal with a negative (-) charge 
c)
a metal with a positive (+) charge 
d)
a non-metal with a positive (+) charge
182.
Covalent Compounds HAVE a positive (+) or negative (-) charge 
a)
True
b)
False
c)
Que onda, Hagerman? 
d)
What was that now? 
183.
Ionic Compounds HAVE a positive (+) or negative (-) charge 
a)
True
b)
False
c)
Que onda, Hagerman? 
d)
What was that now? 
184.
Why does K become positive when it bonds to Cl to form KCl?
a)
Because it loses an electron to have a full valence shell 
b)
Because it gains an electron to have 2 valence electrons
c)
Because it loses an electron to become negatively charged
d)
Because Cl gives away its 7 electrons to Na to form an equal charge 
185.
CO2
a)
Ionic
b)
Covalent
c)
Polyatomic Ion 
d)
Metallic 
186.
NaCl
a)
Ionic
b)
Covalent
c)
Metallic
d)
Polyatomic Ion 
187.
MgCl2
a)
Ionic
b)
Covalent
c)
Polyatomic Ion
d)
Metallic 
188.
O3
a)
Covalent
b)
Ionic
c)
Metallic
d)
Polyatomic Ion 
189.
The octet rule means that all valence shells want to have the number...... 
a)
1
b)
9
c)
8
d)
16
190.
All atoms/elements bond in order to ....
a)
Have a full valence shell
b)
Give away electrons or take electrons
c)
Only share electrons
d)
To create electrical currents for human use 
191.
Why does NaCl have different charges? 
a)
The metal gives away an electron to the nonmetal
b)
The metal takes the electron from the nonmetal
c)
The metal and the nonmetal equally share electrons
d)
The nonmetal gives away its electrons to the metal 
192.
Why does CO2 not have a charge? 
a)
The metal gives away an electron to the non-metal
b)
The metal takes the electron from the non-metal
c)
The non-metals equally share electrons
d)
The metal and the non-metal equally share electrons
193.

Identify the following compound as ionic or covalent: MgO

a)

ionic

b)

covalent

194.

Identify the following compound as ionic or covalent: CF4

a)

ionic

b)

covalent

195.

Identify the following compound as ionic or covalent: SO2

a)

ionic

b)

covalent

196.

Identify the following compound as ionic or covalent: CO

a)

ionic

b)

covalent

197.

Identify the following compound as ionic or covalent: Ca(OH)2

a)

ionic

b)

covalent

198.
Is hydrogen considered a metal or a non-metal?
a)
A metal
b)
Nonmetal
c)
Metalloid
199.
Why do elements bond?
a)
To be friends
b)
To create a new element
c)
To become stable
200.
Same repel, opposites
a)
avoid
b)
attract
c)
push
d)
pull
201.
What is a valence electron?
a)
The sum of neutrons and protons.
b)
The # of electrons in the last shell.
c)
A type of bond.
d)
A popular compound.
202.
Group numbers on the periodic table help us determine 
a)
The number of valence electrons
b)
Color of the elements
203.
Where are metals located on the periodic table?
a)
Blue
b)
Green
c)
Red
204.
Where are the nonmetals located on the periodic table? 
a)
Blue
b)
Red
c)
Green

Similar Resources on Wayground

Science fusion G7 Unit 2 sound

207 questions

Science fusion G7 Unit 2 sound

quiz

Worksheet

•

7th Grade

7th Grade Final Exam Study Guide

200 questions

7th Grade Final Exam Study Guide

quiz

Worksheet

•

7th Grade