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Mixtures

Total questions: 126

Worksheet time: 1hrs 3mins

Name
Class
Date
1.

What is a mixture?

a)

elements chemically combined

b)

a combination of different substances

c)

composed of one atom only

d)

it is made of chemical

2.
What type of mixture is this?
a)
heterogeneous 
b)
homogeneous
3.
Sand floating in water, but most of the sand is settled at the bottom this an example of which type of mixture?
a)
A solution
b)
A colloid
c)
A suspension
d)
A compound
4.

Which statement below does NOT describe a colloid?

a)

A colloid is a type of heterogeneous mixture

b)

A colloid is a type of solution.

c)

The particles in a colloid do not settle like they do in a suspension.

d)

The particles in a colloid do not dissolve – they are just too small to be seen.

5.

How are suspensions and colloids different?

a)

Suspensions settle out and colloids do not settle.

b)

Colloids settle out and suspensions do not settle.

c)

Suspensions dissolve and colloids do not.

d)

Colloids dissolve and suspensions do not.

6.

In a solution, it is the substance that is being dissolved.

a)

Solute

b)

Suspension

c)

Colloid

d)

Solvent

7.

In a solution, it is the dissolving substance.

a)

solvent

b)

suspension

c)

colloid

d)

solution

8.
____ is another name for a homogeneous mixture. 
a)
Solution
b)
Suspension
c)
Substance
d)
Liquid 
9.

_______ is a mixture in which particles will settle out.

a)

suspension

b)

colloid

c)

compound

d)

solvent

10.

The air around is a mixture of gases.

a)

True

b)

False

11.

It is a type of mixture that has the SAME COMPOSITION in every part.

a)

Homogenous

b)

Heterogeneous

12.

Chocolate milk is an example of a _________________.

a)

homogeneous mixture

b)

heterogeneous mixture

13.

Salad is an example of a _____________.

a)

homogeneous mixture

b)

heterogeneous mixture

14.

Colored water is an example of a ________.

a)

homogeneous mixture

b)

heterogeneous mixture

15.

Chicken noodle soup is an example of a _____________.

a)

homogeneous mixture

b)

heterogeneous mixture

16.
Two substances physically combined and that appears the same throughout is classified as
a)
A homogeneous mixture
b)
A heterogeneous mixture
c)
An element
d)
  A compound
17.

When two or more substances are combined so each can be separated by physical means, the result is a(n) _____.

a)

chemical change

b)

compounds

c)

mixture

d)

element

18.

A fruit salad is a homogeneous mixture.

a)

True

b)

False

19.

This is a mixture of two or more substances in which one or more of these substances (solutes) is dissolved in another substance.

a)

compound

b)

element

c)

solution

d)

heterogeneous mixture

20.
This can be separated physically. 
a)
mixture 
b)
element 
c)
compound 
21.
Salt is a _________. 
a)
compound 
b)
element 
c)
mixture 
22.
Milk is a ________
a)
compound 
b)
mixture 
c)
element 
23.

The things that make up a mixture ________ their individual properties.

a)

lose

b)

share

c)

keep

d)

alter

24.

What is a type of pure substance made of only one type of atom?

a)

element

b)

compound

25.

Which of these are made of more than one type of atom? Please choose all that apply.

a)

compounds

b)

homogeneous mixtures

c)

elements

d)

heterogeneous mixtures

26.

Which type of mixture can be easily separated?

a)

homogeneous mixture

b)

heterogeneous mixture

27.

What type of mixture is NOT easily separated?

a)

homogeneous mixture

b)

heterogeneous mixture

28.

Why is a compound different than a mixture?

a)

In a compound, the atoms are chemically bonded together.

b)

In a mixture, the atoms are chemically bonded together.

29.

Kool-Aid is made from dissolving Kool-Aid powder in water. When you add the powder, the atoms mix together but are not chemically bonded together. What would Kool-Aid be classified as?

a)

a mixture

b)

a pure substance

30.

Separating large marshmallows from hot chocolate powder

a)

Filter

b)

Sieve

c)

Magnetism

d)

Evaporation

31.

Separating sugar and water (do not need to keep the water)

a)

evaporation

b)

sieve

c)

magnetism

d)

filter

32.

Separate metal paperclips from eraser bits

a)

Magnetism

b)

Filter

c)

Sieve

d)

Evaporation

33.

Separating water and pasta

a)

Filter

b)

Evaporation

c)

Sieve

d)

Magnetism

34.

Separating tea leaves from a cup of tea

a)

Evaporation

b)

Magnetism

c)

Sieve

d)

Filter

35.

Separating sand from iron filings

a)

evaporation

b)

sieve

c)

magnetism

d)

filter

36.

Separate soil from water

a)

magnetism

b)

evaporation

c)

sieve

d)

filter

37.

Separate pulp from orange juice

a)

Filter

b)

Evaporation

c)

Magnetism

d)

Sieve

38.

Creating a mixture results in _____________ only.

a)

Two parts

b)

Chemical changes

c)

Physical changes

d)

Chemical reactions

39.

Which mixture can be separated using a paper filter?

a)

sand and iron filings

b)

saltwater

c)

sand and water

d)

none of the above

40.

Which of the following mixtures can be separated using Decantation?

a)
b)
c)
d)
41.

Linda is cooking rice for dinner. Her mother asked her to washed the rice grain before she put it into fire. What separation of mixtures she should use?

a)

Evaporation

b)

Distillation

c)

Chromatography

d)

Decantation

42.

Which of the following can be separated by distillation?

a)
b)
c)
d)
43.

Which of the following is the correct setup of Filtration?

a)
b)
c)
d)
44.

Which of the following mixtures can be separated by Evaporation?

a)
b)
c)
d)
45.

Name the separation technique shown in the diagram

a)

Filtration

b)

Chromatography

c)

Centrifugation

d)

Distillation

46.

Complete the sentence:

___________ allows to separate the fine flour particles from bigger impurities (lumps).

a)

Filtration

b)

Decantation

c)

Sieving

d)

Magnetism

47.

Which of the following is a correct statement about distillation

a)

The components of the mixture have different densities

b)

The components of the mixture have different melting points

c)

The components of the mixture have different boiling points

d)

The components of the mixture form a heterogeneous mixture

48.

What happens when sugar is mixed with water?

a)

The sugar and water become a new compound that can be separated by crystallization

b)

The sugar dissolves as it is a solid and can be separated by crystallization

c)

The sugar and water become a mixture that can be separated by crystallization

d)

The sugar and water become a mixture that can be separated by filtration

49.

Which of the following separations cannot be carried out using a centrifuge? The separation of:

a)

water from wet clothes

b)

cream from milk

c)

red blood cells from plasma

d)

salt from sea water

50.

Which can be separated using Magnetism?

a)
b)
c)
d)
51.

Which of the following is not a matter?

a)

a candle's heat

b)

a candle

c)

air inside a balloon

d)

a melting ice cream

52.

Matter is defined as:

a)

Anything that has mass and takes up space.

b)

Anything that produces light.

c)

Anything that can be seen with the naked eye.

d)

Anything that moves.

53.

Matter can be classified into two main categories: __________ __________ and __________.

a)

Pure substances and mixtures

b)

Elements and compounds

c)

Atoms and molecules

d)

Solids and liquids

54.

A substance made up of only one type of atom is called a(n) __________.

a)

Element

b)

Compound

c)

Mixture

d)

Solution

55.

A pure substance made up of more than one atom, in a specific ratio, is called:

a)

Element

b)

Compound

c)

Mixture

d)

Solution

56.

Plasma is a high-energy state of matter that often occurs in __________.

a)

Stars (or lightning)

b)

Oceans

c)

Mountains

d)

Forests

57.

The Bose-Einstein condensate is a state of matter that forms at which temperature?

a)

At temperatures close to absolute zero

b)

At room temperature

c)

At the boiling point of water

d)

At the temperature of the sun's core

58.

The process when a gas changes into a liquid is called:

a)

Condensation

b)

Evaporation

c)

Sublimation

d)

Deposition

59.

The periodic table organizes and provides information about _______ ___________.

a)

elements and their properties

b)

chemical reactions only

c)

types of laboratory equipment

d)

different types of mixtures

60.

Plasma emits what when excited, and where can we find this state of matter?

a)

Light; in stars and neon signs

b)

Sound; in oceans and rivers

c)

Heat; in ice and snow

d)

Electricity; in wood and plastic

61.

The two scientists who predicted the Bose-Einstein condensate are:

a)

Albert Einstein and Satyendra Nath Bose

b)

Niels Bohr and Werner Heisenberg

c)

Marie Curie and Max Planck

d)

Isaac Newton and James Clerk Maxwell

62.

The unique property of Bose-Einstein condensate that occurs near absolute zero is:

a)

Atoms behave as a single quantum entity

b)

Atoms move faster than light

c)

Atoms become highly radioactive

d)

Atoms split into smaller particles

63.

When a gas changes directly into a solid, it is called _____________.

a)

deposition

b)

sublimation

c)

condensation

d)

evaporation

64.

Name one practical application of Bose-Einstein condensate in the video.

a)

Used in precision measurement devices

b)

Used in cooking appliances

c)

Used in sports equipment

d)

Used in automotive paint

65.
A measure of how much mass is contained in a given volume is called ___.
a)
density
b)
area
c)
cubic measurement
d)
volume
66.
What is a physical property of matter?
a)
Solubility
b)
Acidity
c)
Basicity
d)
Reactivity
67.
When a liquid reaches the temperatures of its ___, it can become a gas.
a)
melting point
b)
freezing point
c)
boiling point
d)
density
68.
What is the difference between a physical and a chemical property of matter?
a)
A physical property does not change the identity of a substance, and a chemical property does change something into a new substance.
b)
A chemical property does not change the identity of a substance, and a physical property does change something into a new substance.
c)
A physical property means an object cannot be changed, but a chemical property can change an object.
d)
A chemical property means an object cannot be changed, but a physical property can change an object.
69.
Which of the following is NOT a physical property?
a)
Reactivity
b)
Melting point
c)
Solubility
d)
Odor
70.
Which of the following is NOT a physical property?
a)
Combustibility
b)
Boiling point
c)
Solubility
d)
Shape
71.
All of the following are physical properties except ____.
a)
Combustibility
b)
Melting point
c)
Density
d)
Solubility
72.
All of the following are physical properties except ____.
a)
Reactivity
b)
Boiling point
c)
Shape
d)
Solubility
73.
All of the following are physical properties except ____.
a)
Rust
b)
Odor
c)
Liquid
d)
Luster
74.
a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

75.
a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

76.

2 or more different elements that are bonded together is called...

a)

A. element

b)

B. compound

c)

C. mixture

d)

D. solution

77.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Compounds
d)
Mixture of Elements
78.

a different way to say Law of Conservation of Matter

a)

Law of Conservation of Volume

b)

Law of Conservation of Energy

c)

Law of Conservation of Mass

d)

Law of Conservation of Environment

79.

two or more atoms joined together (can be from the same element or different elements)

a)

molecule

b)

compound

c)

mixture

d)

solution

80.

two or more atoms joined together (can be from the same element or different elements)

a)

molecule

b)

compound

c)

mixture

d)

solution

81.

a combination of symbols that shows the element(s) in a molecule or compound and the ratio of atoms

a)

mathematical formula

b)

mathematical equation

c)

chemical formula

d)

chemical equation

82.

a representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products

a)

mathematical formula

b)

mathematical equation

c)

chemical formula

d)

chemical equation

83.

a number in front of a chemical formula that indicates how many molecules or compounds of each reactant and product are involved in a reaction

a)

denominator

b)

coefficient

c)

numerator

d)

subscript

84.

a substance that takes part in and undergoes change during a reaction.

a)

coefficient

b)

subscript

c)

reactant

d)

product

85.

a substance that forms in a chemical reaction

a)

coefficient

b)

subscript

c)

reactant

d)

product

86.

If 20g of sugar is stirred into a beaker containing 100g of water. What would the mass of the dissolved solution be after the sugar is dissolved fully?

a)

20g

b)

100g

c)

80g

d)

120g

87.

Suppose you have 15g of baking soda and mix it with 15g of vinegar. When they are combined they bubble and fizz a lot. The final solution has a mass of 25g. What happened to the "lost" 5g?

a)

it dissappears

b)

it is still there just not weighted

c)

it is in the gas that is formed

d)

nothing happened

88.

How many atoms of aluminum are on each side of the following equation?

4Al + 3O2 --> 2Al2 O3

a)

2

b)

6

c)

4

d)

1

89.
If reaction starts with 20g of reactants it should produce 
a)
a total of 40g of products
b)
a total of 10g of products
c)
a total of 80 g of products
d)
a total of 20g of products
90.

How many oxygen atoms are in the products for the chemical reaction below?
4Fe + 3O2 → 2Fe2O34Fe\ +\ 3O_{2\ }\rightarrow\ 2Fe_2O_3  

a)

2

b)

3

c)

5

d)

6

91.
In a reaction A + B ----> C,  reactant A has 5g and product  C has 9g. How many grams does reactant B should have? 
a)
4g
b)
5g
c)
9g
d)
14g
92.
Is this equation balanced or unbalanced? 
H2 + O2 --> H2O
a)
balanced
b)
unbalanced
93.

When sodium and chlorine combine to form sodium chloride, sodium chloride is the:

a)

Originator

b)

Reactant

c)

Product

d)

Produce

94.

Which of the models of a chemical reaction best represents the Law of Conservation of Mass?

a)

A

b)

B

c)

C

d)

D

95.

Which of the models of a chemical reaction best represents the Law of Conservation of Mass?

a)

A

b)

B

c)

C

d)

D

96.

Based on the Law of Conservation of Matter, describe the relationship between the mass of the reactants and the mass of the products.

a)

The mass of the products is always greater than the mass of the reactants.

b)

The mass of the reactants is less than the mass of the products.

c)

The mass of the reactants equals the mass of the products.

d)

The mass of the reactants is greater than the mass of the products.

97.
12g of Carbon react with 16g of Oxygen, how much carbon monoxide (CO) is formed? 
a)
28 g
b)
4g
c)
30g
d)
12g
98.

What happens to atoms in a chemical reaction?

a)

they are destroyed

b)

they are created

c)

they are rearranged

99.

Which section represents the yield sign?

a)

A

b)

B

c)

C

100.

Which section represents the products?

a)

A

b)

B

c)

C

101.

Which section represents the reactants?

a)

A

b)

B

c)

C

102.

two or more atoms joined together (can be from the same element or different elements)

a)

molecule

b)

compound

c)

mixture

d)

solution

103.

a combination of symbols that shows the element(s) in a molecule or compound and the ratio of atoms

a)

mathematical formula

b)

mathematical equation

c)

chemical formula

d)

chemical equation

104.

a representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products

a)

mathematical formula

b)

mathematical equation

c)

chemical formula

d)

chemical equation

105.

a number in front of a chemical formula that indicates how many molecules or compounds of each reactant and product are involved in a reaction

a)

denominator

b)

coefficient

c)

numerator

d)

subscript

106.

a substance that takes part in and undergoes change during a reaction.

a)

coefficient

b)

subscript

c)

reactant

d)

product

107.

a substance that forms in a chemical reaction

a)

coefficient

b)

subscript

c)

reactant

d)

product

108.

If 20g of sugar is stirred into a beaker containing 100g of water. What would the mass of the dissolved solution be after the sugar is dissolved fully?

a)

20g

b)

100g

c)

80g

d)

120g

109.

How many atoms of aluminum are on each side of the following equation?

4Al + 3O2 --> 2Al2 O3

a)

2

b)

6

c)

4

d)

1

110.
If reaction starts with 20g of reactants it should produce 
a)
a total of 40g of products
b)
a total of 10g of products
c)
a total of 80 g of products
d)
a total of 20g of products
111.

How many oxygen atoms are in the products for the chemical reaction below?
4Fe + 3O2 → 2Fe2O34Fe\ +\ 3O_{2\ }\rightarrow\ 2Fe_2O_3  

a)

2

b)

3

c)

5

d)

6

112.

Which of the models of a chemical reaction best represents the Law of Conservation of Mass?

a)

A

b)

B

c)

C

d)

D

113.

Based on the Law of Conservation of Matter, describe the relationship between the mass of the reactants and the mass of the products.

a)

The mass of the products is always greater than the mass of the reactants.

b)

The mass of the reactants is less than the mass of the products.

c)

The mass of the reactants equals the mass of the products.

d)

The mass of the reactants is greater than the mass of the products.

114.

Which section represents the yield sign?

a)

A

b)

B

c)

C

115.

Which section represents the products?

a)

A

b)

B

c)

C

116.

Which section represents the reactants?

a)

A

b)

B

c)

C

117.

BIG BANG significa:

a)

Es un reloj de Londres

b)

Origen

c)

Gran explosión

d)

Primera Luz

118.

What is the current state of the universe according to the Big Bang Theory?

a)

It is static and unchanging

b)

It is still expanding

c)

It is contracting

d)

It has stopped expanding

119.

The Cyclic Universe Theory proposes that the universe experiences:

a)

rapid expansion from a singularity.

b)

continuous cycles of expansion and contraction.

c)

vibrations of strings.

d)

collisions of branes.

120.

One of the books of the Hebrew Bible and Christian old testament, described how God separated light from darkness, created the sky, land, sea, moon, stars, and every living creature in a span of six days.

a)

Genesis

b)

Luke

c)

Peter

121.

He believed in a primordial universe and explained that the original state of the cosmos was a primordial mixture of all its ingredients small fragments of themselves

a)

Democritus

b)

Ptolemy

c)

Anaxagoras

122.

He believed in a primordial universe and explained that the original state of the cosmos was a primordial mixture of all its ingredients small fragments of themselves

a)

Democritus

b)

Ptolemy

c)

Anaxagoras

123.

They believed in an atomic universe

a)

Leucippus and Democritus

b)

Stoic Philosophers

c)

Aristotle and Ptolemy

124.

They believed that the universe is like a giant living body, with the sun and the stars as the most important parts to which everything else was interconnected.

a)

Leucippus and Democritus

b)

Stoic Philosophers

c)

Aristotle and Ptolemy

125.

He describe the universe, matter on the large scale is uniformly distributed, and the universe is gravitationally balanced but essentially unstable

a)

Isaac Newton

b)

Renee Descartes

c)

Albert Einstein

126.

He demonstrated that the motions of celestial objects can be explained without putting Earth in the center of the universe

a)

Aristotle

b)

NIcolaus Copernicus

c)

Albert Einstein

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