Quiz about Chemistry Vielma

Question 1

All elements and matter are composed of extremely small particles called:

Accepted Answer

Atoms

Answer

Mixtures

Answer

Molecules

Answer

Compounds

Question 2

What can you conclude from the fact that scientists continue to update the atomic model?

Accepted Answer

New information about atoms continues to be discovered

Answer

Scientists did not have any information about atoms until a few years ago

Answer

Old information about atoms is useless

Answer

Scientists still have no idea what atoms look like

Question 3

Which particles in atoms have a negative electric charge?

Accepted Answer

electrons

Answer

nuclei

Answer

neutrons

Answer

protons

Question 4

In an atom, the number of protons equals the number of

Accepted Answer

electrons.

Answer

neutrons.

Answer

nuclei.

Answer

isotopes.

Question 5

What holds atoms together in a molecule?

Accepted Answer

chemical bonds

Answer

Gravity

Answer

density

Answer

physical bonds

Question 6

The nucleus of an atom has

Accepted Answer

protons and neutrons

Answer

neutrons and electrons

Answer

protons and electrons

Answer

all the above

Question 7

Using the diagram to identify the letter that shows the proton.

Accepted Answer

c

Answer

a

Answer

b

Question 8

Using the diagram to identify the letter that shows the electron.

Accepted Answer

a

Answer

b

Answer

c

Question 9

Which particles in atoms have a positive charge?

Accepted Answer

Protons

Answer

Nuclei

Answer

Neutrons

Answer

Electrons

Question 10

Table sugar and table salt are examples of

Accepted Answer

compounds.

Answer

atoms.

Answer

elements.

Answer

mixtures.

Question 11

Substances that CANNOT be broken down chemically into other substances are

Accepted Answer

Elements

Answer

Compounds

Answer

Mixtures

Answer

Solutions

Question 12

A salad, diet mountain dew, and mud are all examples of:

Accepted Answer

Mixtures

Answer

Elements

Answer

Atoms

Answer

Compounds

Question 13

Lemonade consists of several substances that are NOT chemically combined, so lemonade is classified as a(n)

Accepted Answer

mixture.

Answer

element.

Answer

pure substance.

Answer

compound.

Question 14

The measurement of how much mass is contained in a given volume is called

Accepted Answer

density.

Answer

weight.

Answer

boiling point.

Answer

matter.

Question 15

What is the relationship between mass and weight?

Accepted Answer

Mass is the measure of the amount of matter in an object, while weight is the measure of the pull of gravity on an object.

Answer

Mass is a measurement made using a scale, while weight is a measurement made using a triple-beam balance.

Answer

Weight is the measure of the amount of matter in an object, while mass is the measure of the pull of gravity on an object.

Answer

Weight is a measurement made using a scale, while mass is a measurement made using a triple-beam balance.

Question 16

If the mass of the pebble in a graduated cylinder is 80g and it displaced 40 ml of water, what is the density of the rock? g/ml

Accepted Answer

2 g/mL

Answer

.5 g/mL

Answer

3.2 g/mL

Question 17

The measure of how much matter an object contains is its

Accepted Answer

Mass

Answer

Volume

Answer

Weight

Answer

Density

Question 18

How does decreasing the volume of a sample affect the density of the same sample?

Accepted Answer

The density will remain the same.

Answer

The density will decrease slightly.

Answer

The density will increase slightly.

Answer

The density will change significantly, but there is no way to determine whether it will increase or decrease.

Question 19

If a sample object has a density of 0.75 g/cm3, will it float or sink in water?

Accepted Answer

It will float because it is less dense than water.

Answer

It will sink because it is more dense than water.

Answer

It will float because it is more dense than water.

Answer

It will sink because it is less dense than water.

Question 20

If a sample object has a mass of 26 g and a volume of 87 cm3, will it float or sink in in a liquid sample with a density of .85 g/cm3?

Accepted Answer

It will sink because it is more dense than the liquid.

Answer

It will float because it is more dense than the liquid.

Answer

It will sink because it is less dense than the liquid.

Answer

It will float because it is less dense than the liquid.

Question 21

Ice floats in water because it is

Accepted Answer

less dense than water.

Answer

colder than water.

Answer

more dense than water.

Answer

warmer than water.

Question 22

The dimensions of the cube above are:

Length= 4.5cm

Width= 4.5cm

Height= 4.5cm

Mass= 79g

Use the dimensions to calculate the volume and density of the block.

a. What is the density?

Accepted Answer

.87 g/cm3

Answer

1.15 g/cm3

Answer

5.85 g/cm3

Question 23

Matter can be defined as anything that ... (select ALL answers that apply)

Accepted Answer

has mass

Accepted Answer

is either a solid or a liquid

Accepted Answer

takes up space

Accepted Answer

has weight

Question 24

Which substance is matter?

Accepted Answer

Table

Answer

Sound

Answer

Energy

Answer

Shadow

Question 25

Which substance is NOT matter?

Accepted Answer

Feelings

Answer

Air

Answer

Water

Answer

Puppy

Question 26

The following picture is an example of a ...

Accepted Answer

Mixture of elements & compounds

Answer

Element

Answer

Compound

Answer

Mixture of elements

Answer

Mixture of compounds

Question 27

The following picture is an example of a ...

Accepted Answer

Mixture of elements

Answer

Element

Answer

Compound

Answer

Mixture of compounds

Answer

Mixture of elements & compounds

Question 28

The following picture is an example of a ...

Accepted Answer

Compound

Answer

Element

Answer

Mixture of elements

Answer

Mixture of compounds

Answer

Mixture of elements & compounds

Question 29

Two objects that have the same ______________ will have the same weight when they experience the gravitational force of the same planet.

Accepted Answer

Mass

Answer

Volume

Answer

Density

Answer

Area

Question 30

Which of these statements is false?

Accepted Answer

Atoms of different elements are the same.

Answer

Atoms of different elements can combine to form compounds.

Answer

Oxygen and copper are examples of elements.

Answer

Elements are pure substances.

Question 31

Place the following scientists in order, from earliest to latest: A) Ernest Rutherford; B) J.J. Thomson; C) John Dalton

Accepted Answer

C, B, A

Answer

A, C, B

Answer

B, C, A

Answer

C, A, B

Question 32

What did Democritus, Dalton, Thomson, Rutherford, and Bohr all have in common?

Accepted Answer

They each contributed to the development of the atomic theory.

Answer

They each conducted experiments in which particles collided.

Answer

They each identified new elements.

Answer

They each identified new isotopes of atoms.

Question 33

Scientists have developed the Atomic Theory over a period of hundreds of years. What will help us further the development?

Accepted Answer

increasing the ability of technology, like microscopes, to see even smaller particles

Answer

increasing the number of atoms in the universe

Answer

decreasing the number of atoms in the universe

Answer

decreasing the ability of technology, like microscopes, to see even smaller particles

Question 34

The diagram represents Rutherford's Gold Foil experiment. Which statement is a conclusion that came from this experiment?

Accepted Answer

most of an atom is empty space and its mass is concentrated in its center

Answer

the probable location of electrons can be predicted using a cloud model

Answer

electrons orbit the nucleus in rings at set distances

Answer

the nucleus of an atom is made of protons and neutrons

Question 35

Which of the following is the philosopher credited with coining the term "atom"?

Accepted Answer

Democritus

Answer

Plato

Answer

Socrates

Answer

Aristotle

Question 36

According to the information in the table, what comparison can the scientist make about the densities of sugar and corn starch?

Accepted Answer

Sugar is more dense than corn starch.

Answer

Both sugar and cornstarch are more dense than salt

Answer

Sugar and corn starch have the same density.

Answer

Corn starch is more dense than sugar.

Question 37

Two students are measuring and calculating the density of a piece of crayon. The crayon accidentally gets dropped and is now in two pieces. Student A found the density before the crayon was dropped and Student B found the density after the crayon was dropped. How will the density of the crayon found by Student A compare to the density found by Student B?

Accepted Answer

The density will be the same.

Answer

Student B will have a greater density.

Answer

Student A will have a greater density.

Answer

The density cannot be found for student B

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science