Free Printable Unit 7.5.2 Stations

1.

Number of C's in 2Na₂CO₃

a)

1

b)

2

c)

3

d)

5

2.

How many Elements are in the compound C₂H₈O ?

a)

2

b)

1

c)

3

d)

0

3.

How many total atoms are in the compound C₂H₈O ?

a)

11

b)

2

c)

8

d)

1

4.

How many Sodium (Na) are in 6NaCl?

a)

1

b)

12

c)

6

5.

How many Chlorine are in MgCl₂?

a)

2

b)

1

c)

3

6.

How many Magnesium are in 10MgCl₂?

a)

10

b)

5

c)

20

7.

How many elements are in C₆H₁₂O₆?

a)

1

b)

2

c)

3

d)

4

8.

How many atoms are there TOTAL in:
H₂SO₄

a)

6

b)

5

c)

7

d)

3

9.

How many elements are in this chemical formula?

$H_2SO_4$

a)

1

b)

2

c)

3

d)

4

10.

How many atoms of Carbon are in this formula? $C_{6\ }H_{12}O_6$

a)

6

b)

1

c)

12

11.

What elements are represented in this chemical formula? $Fe_2O_3$

a)

Iron, Oxygen

b)

Francium, Europium, Oxygen

c)

Ferrium, Oxygen

d)

Berylium, Oxygen

12.

What is the total number of atoms in this formula? $H_2O_2$

a)

2

b)

4

c)

3

13.

How many more atoms of Oxygen than than Magnesium are in this formula? (subtraction) $MgSO_4$

a)

4

b)

3

c)

2

d)

6

14.

Which of the following is a molecule of a compound?

a)

$H_2$

b)

$Cl_2$

c)

$H_2O$

d)

$F_2$

15.

Is this an element or a compound? $CaSO_4$

a)

Element

b)

Compound

16.

Which chemical formula correctly displays 1 atom of nickel and 2 atoms of Fluorine?

a)

niF2

b)

NIF₂

c)

Ni₁F₂

d)

NiF₂

17.

What is the total number of atoms in this chemical formula? $C_8H_3NaBr_{12}$

a)

18

b)

12

c)

25

d)

24

18.

Which element has the greatest number of atoms? $AgNO_3$

a)

Silver

b)

Gold

c)

Nitrogen

d)

Oxygen

19.

Molecules that are made of more than one type of atom are called?

a)

Molecules

b)

Elements

c)

Mixtures

d)

Compounds

20.

Compounds consist of two or more elements bond together.

a)

True

b)

False

21.

Which of the following is not a compound?

a)

H₂O

b)

C₈H₁₈

c)

NaCl

d)

Cl

22.

Is this an example of a compound or element?

a)

element

b)

compound

23.

Is this an example of an element or compound?

a)

element

b)

compound

24.

Is this equation balanced?

a)

yes

b)

no

c)

Not enough information

25.

Is this equation balanced?

a)

yes

b)

no

c)

Not enough information

26.

Is the equation balanced?: 2H₂O + O₂ --> 4MgO + 3Fe

a)

Yes

b)

No

27.

What does the Law of Conservation of Mass state?

a)

Matter cannot be gained or lost in a chemical reaction.

b)

Matter can only be lost in a chemical reaction.

c)

Matter can only be gained in a chemical reaction.

d)

Matter can be gained and lost in a chemical reaction.

28.

What is the little number after an element in a chemical equation called.
Example: H₂

a)

Coefficient

b)

Subscript

c)

Atom

d)

Equation

29.

At the end of chemical reactions, what is the total mass of the reactants compared to the total mass of the products?

a)

the product is doubled

b)

the product is half the mass of the reactants

c)

the mass is the same

d)

the mass changes depending on the reaction

30.

What is a coefficient?

a)

The small number on the right of the chemical symbol.

b)

The large number to the left of a formula.

31.

How many atoms of aluminum are on each side of the following equation: 4Al + 3O₂--> 2Al₂O₃

a)

2

b)

6

c)

1

d)

4

Unit 7.5.2 Stations

Total questions: 31

Worksheet time: 20mins

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