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Worksheetssemester1final
Total questions: 159
Worksheet time: 3hrs 59mins
What is false of a covalent and ionic bond?
covalent is sharing electrons but ionic has loss or gain of electrons
covalent has cations and ionic has attraction due to charge
ionic example is salt and covalent example is water
ionic has a positive cation which is LEO that loses an electron
What are the two elements called that form in a covalent bond?
cation and anion
metal and nonmetal
metal and metal
nonmetal and nonmetal
Most elements are electronically stable in an octet, but Hydrogen is like Helium and only requires how many electrons?
one
two
four
eight
what is the correct expression for an ionic bond?
LEO says GER
sharing is caring
cats are negative
onions are negative
Which of the following is true of the location of elements in the periodic table?
mostly metals are on the left ,metalloids in the middle and nonmetals on the right
mostly metals are on the right ,metalloids in the middle and nonmetals on the left
metals are from group 1 and 2 only
the noble gases are from group 1
which of the following are examples of a diatomic molecule or compound
N2
CO2
H20
O2
Methane (CH4)
Which of the following is(are) an example of an ionic compound
metal and nonmetal bonded
NaCl
Sodium Chloride
salt
CO2
On the periodic table name which is a metal, nonmetals, and metalloids.
Sodium, Oxygen, Boron
Chlorine, Hydrogen, Silicon
Lithium, Boron, Nitrogen
Chlorine, Sodium, and Boron
Which of the following represent molecules?
O2
CO2
Cl2
NaCl
Which of the following represent compounds?
O2
CO2
Cl2
NaCl
How many valence electrons does the oxygen atom (O) share with each hydrogen atom (H)?
The oxygen atom shares one pair of valence electrons with each hydrogen atom.
The oxygen atom shares two pair of valence electrons with each hydrogen atom.
The oxygen atom shares an octet with each Hydrogen atom
Each Hydrogen atom contributes 2 electrons allowing Oxygen to achieve a full outer valence shell
How many covalent bonds hold the water molecule together?
Each pair of shared electrons represents one covalent bond, so two covalent bonds hold the water molecule together.
3
4
it is held together by ionic bonds not covalent bonds
What is false of a covalent bond and an example of a covalent compound or molecule?
A covalent bond is the force of attraction that holds together two atoms that share a pair of valence electrons.
it is between a metal and nonmetal
Covalent bonds form only between atoms of nonmetals.
The two atoms that are held together may be atoms of the same element or different elements
Which of the following is false of the fire article?
Wind helps extinguish fires and decrease in size
He said that firefighters gave up on fighting the fire in Paradise. They helped people leave instead.
Many people were trying to leave the fire at the same time. The lines were slow and the fire kept getting bigger so people left their cars.
The California people had to deal with major wildfires in the past
Which of the following is false of the Carbon Cycle?
The element carbon is a part of seawater, the atmosphere, rocks such as limestone and coal, soils, as well as all living things
Carbon moves from the atmosphere to plants.
In the atmosphere, carbon is attached to oxygen in a gas called carbon dioxide (CO2)
Through food chains, the carbon that is in plants moves to the animals that eat them
fossil fuels in the atmosphere decrease the levels of carbon dioxide
Which of the following is false of Carbon Dioxide
it is a greenhouse gas and traps heat in the atmosphere
Without it and other greenhouse gases, Earth would be a frozen world
since the start of the Industrial Revolution humans have burned so much fuel and released so much carbon dioxide into the air that global climate has risen over one degree Fahrenheit
Carbon dioxide from the ground goes into the plant by photosynthesis
Which of the following is not true of Nitrogen discussed in the Khan Nitrogen article?
N2 gas makes up about 78% of Earth's atmosphere by volume
Nitrogen atoms are found in all proteins and DNA
In nitrogen fixation, bacteria convert N2 into ammonia, a form of nitrogen usable by plants.
Nitrogen is incorporated into the animal's body or broken down and excreted as waste
high levels of Nitrogen from fossil fuel combustion can have a positive effect on the atmosphere and human health
Which of the following is not an alternative fuel?
gasoline
ethanol
natural gas
propane
biodiesel
What is not an important reason for having alternative fuels?
they produce fewer vehicle emissions like greenhouse gases and nitrogen oxides
they are not derived from fossil fuel resources
switching to alternative fuel can help a nation be more independent
ethanol when added to gasoline will not boost octane or reduce emissions
Which of the following is false of chemical bonds?
Covalent bonds involve the sharing of electrons
Ionic bonds involve metal and nonmetal
covalent bonds are between metal and nonmetal
Ionic bonds are from attraction of cation and anions
What gas is at a much higher level on Mars compared to Earth?
Nitrogen
Oxygen
Carbon dioxide
Water
What gas makes up 21 percent of earth's atmosphere?
Oxygen
Nitrogen
Helium
Carbon dioxide
Which state of matter has molecules that are close together and has a definite volume?
Liquid
Gas
Solid
Plasma
Which state of matter takes the shape of the container of which it is poured into?
Solid
Gas
Plasma
Liquid
Which is true of boiling and freezing temperatures of water?
32 F and 212 F
O C and 100 C
100 C and 0 C
212 Fand 0 F
Put in correct order: compound molecule atom
Water O2. He
CO2 N2. H2
N2 CO2. He
He N2. CO2
Which of the following is false?
We describe physical properties of matter using shape mass and volume
Solid matter can change shape by itself
Gases have mass
The three major states of matter are solid liquid and gas
Everything around us is made of
Liquids
matter
plasma
gas
Which of the following is not correctly matched?
Flammable......Ability to have a combustion reaction, catch on fire
Environment.......Our surroundings are conditions that affect the behavior of a reaction
Element.......Cannot be chemically broken down into simpler substances
Translucent......Cloudy and appearance not allowing to completely see through
Which of the following is false about matter, mass, and volume?
Matter is all the stuff that exist in the universe
Mass is a measure of the amount of matter in a substance or an object
The basic SI unit of mass is the kilogram
Two different units to measure volume are feet and inches
Which of the following elements was a major poison in the Flint Michigan Water Crisis?
Lead
Arsenic
Chlorine
Uranium
From the table of water quality test results where is the source of the harmful chemical located?
The right side
the left side
below the name of the chemical
above the name of the chemical
What is it called when matter changes from liquid to gas? How about when changing from gas to liquid?
boiling.....evaporation
evaporation…..condensation
melting….freezing
condensation….evaporation
Mark Watney in the movie the Martian produced water by what chemical reaction?
Photosynthesis
combustion
metabolism
evaporation
3rd world countries have young children recycling this, turtles and other aquatic organisms eat this, it does not break down for a thousand years. What is this chemical substance?
oil
plastics
lead
heavy metals
Which of the following is false regarding the difference between evaporation and boiling?
Evaporation occurs at the surface and the the boiling of water is at 100 C
Boiling is a phase change from liquid to gas Evaporation happens from gas to liquid
Evaporation occurs at any temperature and therefore, occurs at a slower rate when compared to boiling
Evaporation is at any temperature and Boiling is at 212 C
How would you convert pounds to kilograms?
Multiply pounds by 2.2
divide pounds by 2.2
add 2.2 to pounds
subtract 2.2 from pounds
Which of the following is an accident?
Exxon Valdez
Hawaii Volcano
Earthquake
Hurricane Florence
In the Planet Infographic assignment what is the major difference between the Earth and Mars atmosphere?
Mars has much larger amounts of Carbon dioxide
Earth has more Carbon dioxide than Mars
Earth has 21 percent Nitrogen
Mars has 21 percent Oxygen
In the photosynthesis reaction which of the following are products
Sugar and Oxygen
Carbon dioxide and water
sugar and carbon dioxide
oxygen and water
When dealing with a multiple choice question what is the best strategy?
read all the answer choices
immediately find all the distracters and decoys
cover the answers and make your predicted answer
read all the answers first then reread the question
What is the name of the type of chemical reaction from jimmy fallon, volcano reading, and funny car video?
Synthesis
Combustion
Flammable
Chemical
In the playposit test taking strategies what is a word that you can trust?
Probably
Always
Only
Certainly
Which of the following is true of the atom?
An atom has a nucleus, made up of protons and neutrons, which is surrounded by a cloud of electrons.
An atom has quarks and leptons, which make up the nucleus and are positively and negatively charged.
An atom has an atomic mass, which measures the amount of electrons and an atomic weight, which measures protons.
An atom has mostly empty space except for the nucleus, which contains nucleons, neutrons and electrons.
Dr. Stockwell says that the atomic number is equal to the number of what?
Neutrons
Electrons
Protons
Bonds
Which of the following is the picture of the atom of Lithium?
What is the answers in order from the left to the right direction for the picture?
molecule...compound.....atom
compound...molecule ....atom
atom....molecule..... compound
compound ...atom....molecule
Which of the following are products from the picture of the combustion reaction?
carbon dioxide and water
methane (CH4) and oxygen
oxygen and water
methane and water
From the youtube video which of the following is not a step of the scientific method?
Ask a question
Make observations
Form a hypothesis
analyze the conclusion
What is the middle of the atom called?
proton
neutron
electron
nucleus
Which of the following is a positive subatomic molecule?
neutron
proton
electron
nucleus
If an element has an atomic number of 2 how many protons does it have?
o
2
-2
4
Match the atomic theorist with the model
Thompson
Rutherford
Dalton
Democritus
The mass of an electron is comparable to what on a football field?
marble
speck of sand
field
football
Atomos comes from which scientist?
Dalton
Rutherford
Bohr
Democritus
what is the mass of the sum of a proton and a neutron
1 amu
2 amu
1 gram
2 grams
During the intro/review question a student is talking. This is not considered what?
permissible
erratic
acceptable
vocational
This is composed of atoms that have the same atomic number
atom
element
molecule
substance
what is false of a neutron?
is not present in ordinary Hydrogen
it has no charge
has a negative charge
has the same mass as a proton
Which of the following is not a resource/ material listed in 2018 class expectations?
Google Classroom
Internet
Headphones
personal tools
Which of the following is not a behavioral expectation
it is permissible to take as many bathroom breaks as needed
no calls or texts in class
no leaving class without permission
no eating
Which of the following is true of rule number 1 of the Lab Safety Contract.
follow all written and verbal instructions carefully
do not eat, drink, or gum during the Lab
conduct yourself in a responsible manner at all times
dress proper in laboratory. no long hair, jewelry, baggy clothing
Which is true of an element?
it can not be broken down into a simpler substance
it is made when two atoms bond
an example is water
it does not have the same number of protons
what is true of the definition of atom in definition assignment in google classroom
it is large
it is an extremely small amount
it is a large unit of a compound
an example is water
which is false of a proton
it is negative in charge
they are found in the nuclei
it is a positive charge
it is a stable particle
which is false of an electron
negative charge
is in all atoms
carries electricity
positive charge
what is true of a neutron
has a negative charge
has the same mass of a proton
is not present in Hydrogen
it has no charge
What is false of Carbon 14?
Radiolabeling.
Dating
Weapons.
What is true of an isotope?
Number of Protons =electrons
Number of protons=neutrons
It has a different amount of neutrons than a neutral element
It is rare that isotopes exist, because they are radioactive
What are the differences between alpha, beta,
and gamma radiation penetrating power?
Alpha penetrates through lead
Beta is larger than alpha so it is blocked by aluminum
Gamma is small so it goes through even dense materials
Protons are positive so they are attracted to metallic substances
From the graph, how many grams of carbon 14 are left when 25% of the original material is remaining?
10 g
5 g
2.5 g
1.25 g
How many half lives have passed when 1.25 grams of material are left from radioactive decay?
1
2
3
4
What is the time duration of 3 half lives if the time it takes a substance to break down to 50 percent it's mass is 6000 years?
18000 years. . .
1800 years
1.25 grams
102500 years
Which of the following is a nuclear accident
Chernobyl
Fukushima
Kilauea
mt. St. Helens
How does alpha, beta, and gamma break up?
Alpha decay breaks up into a son and a helium nucleus pareticle
Beta decay breaks up into a daughter and an electron
Gamma decay breaks up into a large particle or photon of light
Alpha beta and gamma decay all involve breaking into a daughter
What device is the name of the following device
Geiger counter
Radioactive probe
Nuclear detector
Fallout meter
Which of the following are correctly matched?
Cellphone- ionizing ; xrays- nonionizing
Powerline microwave
Cellphone...... xray
Tanning booth....... nuclear
What is false of an ion according to tyler dewitt
Cation is a positive ion created by loss of an electron
Anion is a negative ion from gain of an electron
An ion is neutral in charge
Cation involve loss of electrons. Anions involve gain of electrons
Which of the following is false of an alpha particle?
particle consists of two protons and two neutrons
equivalent to the nucleus of a helium atom.
Is equivalent to a photon or particle of light
is a positively charged particle
What is the mass number of helium?
4
4.003
2
1
What is the charge of p n e in order
Positive negative neutral
Positive neutral negative
Neutral positive negative
Positive neutral neutral
Using the periodic table what is the atomic mass of Helium?
4.003
4
2
1.008
Which of the following is not a reason that nuclear energy is awesome?
Nuclear energy saves lives.
Nuclear energy reduces Co2.
New technologies.
It is very inexpensive
What is the atomic number for Li (Lithium)?
1
2
3
6.941
A good use of nuclear technology is also for what?
In Agriculture to decrease population of insects
To increase crop production
Heat and electric power in space
Farming for improving soil
What is the symbol for the 2nd element on the periodic table?
H
He
Li
Hydrogen
What is not an example of how nuclear technology has benefited medical society?
Find location of normal body cells
Useful to detect flow of blood in heart to check for illness
Hospitals use substances called radioisotopes
Radiation therapy can probably cure cancer
How do you find the mass of the decay product if you know
what percentage it has degraded to?
Follow the line over to the left to the right and then read the label next to the dot
Locate the percentage and then multiply by the half life
It is not possible to find it on this graph
Fold a piece of paper and start from 100 and then take half every time
One of the consequences of the terrible earthquake and tsunami in Japan on March 11 was what?
Radiation from Hiroshima during World War 2
Radioactive leak from Fukushima causing the evacuation of the nearby city
The incident at Chernobyl in the Ukraine
number of deaths from radiation-related illnesses range was no more than 4,000 people
What is the equation for mass number?
mass number= protons + electrons
mass number= protons + neutrons
mass number = p + n + e
mass number = e + p
Given the picture ...what is the number of protons?
4
4.003
3
2
What is the atomic mass for Lithium?
4.003
3
7
6.941
Given the picture what is the number of protons?
4
2
not shown
1
What is the mass number for Lithium?
4
3
6.941
7
What is the atomic number for the element associated with fireworks from the scavenger hunt?
38
37
36
35
What is the atomic number for the element used for radioactive diagnosis (Technetium)?
43
22
81
90
How many neutrons are in regular hydrogen?
0
1
2
3
What is a difference between Carbon and Hydrogen?
number of protons
mass number
atomic mass
number of electrons
How many electrons are in Aluminum?
14
15
27
13
How much does atomic number increase by as you go from H to He on the periodic table?
1
2
multiply by 2
it goes down
Identify from the picture the atomic #
2
4
4.003
3
What is He called?
Hydrogen
the symbol
the name
atom
What is the atomic mass?
4
4.003
6.003
Helium
What is the name of element with atomic #3 on your periodic table?
Lithium
Helium
Hydrogen
4.003
What is the middle of the atom called?
Nucleus
sun
DNA
center
What are the subatomic particles that are not in the middle called?
electrons
protons
neutrons
quarks
In order what are the names of the colors: purple….green….red
electrons....protons....neutrons
neutrons....protons....electrons
nucleus....protons....electrons
electrons......neutrons.....protons
How many neutrons are in this atom?
30
26
56
0
Nitrogen is a key element in protein that is in your muscles, How many protons are there?
7
14
14.007
atomic number
What is the atomic number for Iron
26
25
55.85
56
How many protons are in the atom of Iron
13
26
27
14
What is the atomic mass of Iron
55.933
56
55
26
30
What is the mass number for Iron
56
55.85
55
26
30
What is the number of neutrons in Iron?
30
56
55.85
26
26
What is the atomic number for Aluminum?
13
26.98
27
14
How many protons are in the atom of Aluminum?
13
26.98
14
27
What is the atomic mass of Aluminum?
26.98
27
13
14
What is the mass number of Aluminum?
27
26.98
13
14
What is the number of neutrons in Aluminum?
14
27
26.98
13
What is the atomic number of Sodium
11
12
22.99
23
How many protons are in Sodium?
11
12
22
23
What is the atomic mass of Sodium?
23
22.99
22
12
11
what is the mass number of Sodium?
23
22
11
12
What are the number of neutrons in Sodium?
12
11
22.99
23
22
What does number 1 represent?
symbol
atomic mass
mass number
atomic number
What does number 2 represent?
symbol
name
atomic mass
mass number
What does number 3 represent?
name
symbol
atomic mass
mass number
What does number 4 represent?
atomic mass
mass number
symbol
name
In a neutral atom with a charge of zero the number of protons which are positive should equal the number of what which is negative?
electrons
neutrons
protons
atomic number
Each new period row represents a new ________
energy level or shell
atom or element
atomic number or mass
group number or valence
Elements in the fourth period have _______
four shells
four electrons
four groups
four protons
Which of the following is false of a Group
most elements in the same group have the same amount of electrons in the outermost shell
Group 1 has one valence electron
group 13 has 13 valence electrons
Group number increases from left to right
What period and group is sodium in?
3, 16
16, 3
3, 1
1,3
2,1
Group 1 also is known as the what?
alkali metals
alkali earth metals
transition metals
noble gases
Which of the following is false of the valence electron
it is key to whether an atom bonds with another atom
is the face an atom shows to another atom
it is related to the group number
it is related to the period number
Which of the following is false of lewis structure
lithium has a lewis structure with 1 electron
Boron has 11 valence electrons
Neon has 8 valence electrons
Helium has 2 valence electrons
On the periodic table art project what is the top number shown in each box for the element
atomic number
atomic mass
mass number
neutrons
How many outer valence electrons are needed to make most elements stable?
8
2
18
0
What is the name of an element from the Noble Gasses?
Bromine
Neon
Oxygen
Carbon
Which of the following is matched with the names of the groups (group 1, group 2, group 18)
alkali metals, alkali earth metals, noble gases
halogens alkali earth metals alkali metals
transitional metals, lanthanides, actinides
alkali earth metals, alkali metals, noble gasses
Which of the following is false of a valence electron?
group 13 has 3 of them
it tells if an atom will bond with another atom
is the face an atom shows to other atoms
one way to show them is with the Lewis dot diagrams
valence electrons are equal to the number of neutrons
Which of the following statements are true regarding Hydrogen and Helium
atomic Hydrogen in its neutral form has 1 electron and 1 neutron
Helium is in group 18 and is not stable with only 2 electrons
the Noble gases and Helium are all happy because their valence shell is full
Helium has an atomic mass of 1.008
Which is correct of the following storms?
Cyclones are located to the east and west of the United States
Typhoons are located east of China and West of the Pacific Ocean
Hurricanes are located mostly in the southern part of the world
Hurricanes are located only to the east of the U.S.
What is false of the composition of the atmosphere?
it is 21 percent Oxygen
over 75 percent is Nitrogen
carbon dioxide levels are increasing on the planet
Argon the noble gas is almost 1 percent
Water vapor is not part of the air
Which are not long-term effects of global
climate change “global warming” in the United States
average increase in earth's temperature in the last century
droughts, heat waves, extreme winters and storms
wildfires
increase of the species of plants and animals
According to NASA website what is not an evidence for climate change?
global temperature rise
decreasing sea levels
warming oceans
ocean acidification
In the Newsela article Hurricanes and Storms what is true of storm speed?
more damage is caused by faster moving storms over inhabited areas
more damage is caused by slower moving storms over inhabited areas
the warmer the temperature the slower the storm and more damage
the cooler the temperature the faster the storm and more damage
Climbing average global temperature over the past century has been fueled largely by human activities that have released heat-trapping greenhouse gases. Which of the following is not a GHG?
nitrous oxide
carbon dioxide
CFC's
water vapor
Argon
According to Tyler Dewitt "What is an Ion?" which of the following is false?
When an atom has a negative charge it has more electrons than protons
In the middle of the nucleus are protons and neutrons and flying around the outside of the atom are the electrons
If the number of protons is equal to the number of electrons then the overall charge is equal to zero
a cation has a negative charge and the anion has a positive charge
