Quiz about Atoms (counting), molecules, elements, compounds

Question 1

4CF₂Cl₂

Accepted Answer

C = 4, F = 8, Cl = 8

Answer

C = 4, F = 4, Cl = 2

Answer

C = 1, F = 8, Cl = 8

Answer

C = 1, F = 4, Cl = 8

Question 2

C₃H₅(NO₃)₃

Accepted Answer

C = 3, H = 5, N = 3, O = 9

Answer

C = 3, H = 5, N = 1, O = 9

Answer

C = 9, H = 15, N = 3, O = 9

Answer

C = 9, H = 15, N = 1, O = 3

Question 3

H2SO4

Accepted Answer

H = 2, S = 1, O = 4

Answer

H = 2, S = 4, O = 4

Answer

H = 8, S = 4, O = 4

Answer

H = 2, SO = 4

Question 4

How many different elements are present in this molecule?

3 NH₄C₂H₃O₂

Accepted Answer

4

Answer

15

Answer

36

Answer

5

Question 5

A ______ is a number written in front of a chemical formula.

Accepted Answer

Coefficient

Answer

Subscript

Answer

Exponent

Answer

Coordinator

Question 6

How many Hydrogen atoms are in 4H₂O?

Accepted Answer

8

Answer

6

Answer

2

Answer

4

Question 7

A subscript is the small number below the element symbol that tells the number of _______ of that element.

Accepted Answer

atoms

Answer

valence electrons

Answer

protons

Answer

elements

Question 8

How many atoms are present if there is no subscript following the element symbol?

Accepted Answer

only 1

Answer

0

Answer

2

Answer

1 million

Question 9

Element or compound?
H₂O

Accepted Answer

compound

Answer

element

Question 10

What do we call a chemical substance made up of 2 or more different types atoms bonded together?

Accepted Answer

compound

Answer

formula

Answer

atom

Answer

subscript

Question 11

A combination of symbols and numbers that represent the number and types of elements (atoms) present in a compound

Accepted Answer

chemical formula

Answer

coefficient

Answer

reactant

Answer

compound

Question 12

What is the law of conservation of mass?

Accepted Answer

Mass cannot be created or destroyed in a chemical reaction.

Answer

Mass can change form in a chemical reaction.

Answer

Mass can be destroyed in a chemical reaction.

Answer

Mass can be created in a chemical reaction.

Question 13

What is the difference between reactants and products in a chemical equation?

Accepted Answer

Reactants are the substances present at the beginning of a chemical reaction, while products are the substances formed as a result of the reaction.

Answer

Reactants and products are the same thing in a chemical equation.

Answer

Reactants are the substances formed as a result of a chemical reaction, while products are the substances present at the beginning of the reaction.

Answer

Reactants and products are both formed as a result of a chemical reaction.

Question 14

What is a chemical reaction?

Accepted Answer

A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.

Answer

A chemical reaction is a process that leads to the destruction of chemical substances.

Answer

A chemical reaction is a process that leads to the separation of chemical substances.

Answer

A chemical reaction is a process that leads to the formation of new elements.

Question 15

Which of the following is described as the basic unit of matter?

Accepted Answer

Atom

Answer

Element

Answer

Molecule

Answer

Compound

Question 16

In the atom diagram shown, A is pointing to the darker particles, these are known as

Accepted Answer

protons

Answer

electrons

Answer

neutrons

Answer

the nucleus

Question 17

In the atom diagram shown, E is pointing to

Accepted Answer

An electron

Answer

a proton

Answer

a neutron

Answer

the nucleus

Question 18

B and C are found in the ______ of an atom.

Accepted Answer

Nucleus

Answer

electron cloud

Answer

Space

Answer

Outside

Question 19

Using the information provided, determine how many electrons the a Boron atom contains.

Accepted Answer

5

Answer

2.5

Answer

6

Answer

10.81

Question 20

How many protons does this atom have?

Accepted Answer

5

Answer

2.5

Answer

6

Answer

10.811

Question 21

Which formula has 6 atoms of Carbon, 12 atoms of Hydrogen, and 6 atoms of Oxygen.

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 22

How many Magnesium are in 10MgCl₂?

Accepted Answer

10

Answer

5

Answer

20

Question 23

Determined whether the following equation is balanced or unbalanced. Ag + O_{2 --->}2Ag₂O

Accepted Answer

Unbalanced

Answer

Balanced

Question 24

Determine whether the following equations is balanced or unbalanced. H₄+ O₂---> 2H₂O

Accepted Answer

Balanced

Answer

Unbalanced

Question 25

Determine whether the following equation is balanced or unbalanced. H₂+ Br₂---> 2HBr

Accepted Answer

Balanced

Answer

Unbalanced

Question 26

Determine whether the following equation is balanced or unbalanced. 2Fe + 3Cl₂---> FeCl₃

Accepted Answer

Unbalanced

Answer

Balanced

Question 27

Is the following equation balanced or unbalanced?
Fe + S --> FeS

Accepted Answer

balanced

Answer

unbalanced

Question 28

Atom and the Periodic Table:

Groups/Family/Column is ______________

Accepted Answer

Vertical

Answer

Horizontal

Question 29

Atom and the Periodic Table:

Period /Row= ___________

Accepted Answer

Horizontal

Answer

Vertical

Question 30

Atom and the Periodic Table:

Atomic mass and - Atomic number = ___________

Accepted Answer

# of neutrons

Answer

# of protons

Answer

# electrons

Question 31

Atom and the Periodic Table:

Atomic Mass= # of ________ + ______________

Accepted Answer

All of the above ( they will get the same answer)

Answer

#of protons + # neutrons

Answer

# neutrons + # protons

Question 32

Atom and the Periodic Table

Atomic #=

Accepted Answer

# Proton

Answer

# Neutron

Answer

# Electron

Question 33

Subatomic particles:

Protons: Positive charge, mass: 1 amu , and location: _________

Accepted Answer

nucleus

Answer

electron cloud or rings

Answer

none of the above

Question 34

Subatomic particles:

Neutron: Neutral charge, mass: ________ and location: nucleus

Accepted Answer

1 amu

Answer

.01

Answer

none of the above

Question 35

Subatomic particles:

Electron: ____ charge, mass: .00001 , and location: nucleus

Accepted Answer

negative

Answer

positive

Answer

none of the above

Question 36

In a neutral atom:

# of Protons

Accepted Answer

# of electron

Answer

None of the above

Question 37

In chemical formulas, the number of atoms in a unit of the compound is shown by numbers called

Accepted Answer

subscripts.

Answer

superscripts.

Answer

coefficients.

Answer

elements.

Question 38

A group of chemical symbols and numbers that represent the elements and the numbers of atoms of each element in a compound is

Accepted Answer

a chemical formula.

Answer

an ionic bond.

Answer

a heterogeneous mixture.

Answer

a homogeneous mixture.

Question 39

A substance that cannot be broken down into simpler substances.

Accepted Answer

Element

Answer

Compound

Answer

Molecule

Answer

Mixture

Question 40

A substance made up of atoms of two or more different elements joined by chemical bonds.

Accepted Answer

Compound

Answer

Element

Answer

Molecule

Answer

Mixture

Question 41

A group of like atoms bonded together.

Accepted Answer

Molecule

Answer

Element

Answer

Compound

Answer

Mixture

Atoms (counting), molecules, elements, compounds

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science