Free Printable Symbols, Formulas, and Equations

Worksheets

Symbols, Formulas, and Equations

Total questions: 41

Worksheet time: 10hrs 15mins

Name

Class

Date

How many total ELEMENTS are in: MgO

(a)

How many total ATOMS are in: MgO

(a)

How many total ELEMENTS are in: $AlCl_3$

(a)

How many total ATOMS are in: $AlCl_3$

(a)

How many atoms of chlorine are in: $AlCl_3$

(a)

How many total ELEMENTS are in: SO₄

(a)

SO₄ is composed of which elements?

SO₄

How many total ATOMS are in: SO₄

(a)

How many sulfur atoms are in: SO₄

(a)

10.

How many total ELEMENTS are in: H₃PO₄

(a)

11.

How many total ATOMS are in: H₃PO₄

(a)

12.

H₃PO₄is a...

Compound

Element

Mixture

Hippo

13.

How many total ELEMENTS are in: NaHCO₃

(a)

14.

Which ELEMENTS are in: NaHCO₃

15.

How many total ATOMS are in: NaHCO₃

(a)

16.

How many total ELEMENTS are in: Zn(OH)₂

(a)

17.

How many total ATOMS are in: Zn(OH)₂

(a)

18.

How many total ELEMENTS are in: Ba₃(PO₄)₂

(a)

19.

How many total ATOMS are in: Ba₃(PO₄)₂

20.

Which of the following would be an example of a chemical formula:

C₆H₁₂O₆

F= ma

2 H₂ + O₂ -> 2 H₂O

6.02 x 10²³

21.

Which of the following would be an example of a chemical equation:

C₆H₁₂O₆

F= ma

2 H₂ + O₂ -> 2 H₂O

6.02 x 10²³

22.

Element or Compound?
H₂O

Element

Compound

23.

Element or Compound?
Oxygen

Element

Compound

24.

Element or Compound?
Salt (NaCl)

Element

Compound

25.

Which statement best describes an element?

made from mixture

thousands in the world

pure, made of only one atom

can be separated

26.

Carbon is considered an element while carbon dioxide (CO₂) is considered a compound. This is because carbon dioxide is –

a gas at room temperature.

made of two different elements.

given off by green plants.

27.

Element

Compound

28.

Would this diatomic molecule be considered a compound or an element?

Element

Compound

29.

Based on this symbol, what can you tell about Helium (He)?

Helium is a compound

Helium is an element

helium is a metal

helium is a mixture

30.

H₂O

How many types of elements are in this compound?

31.

Match the following

pure element

pure compound

mixture of elements

mixture of compounds

mixture of elements and compounds

32.

Elements only

33.

pure element

heterogeneous mixture

homogeneous mixture

pure compound

34.

$2Al^{ }\ +SO_4^{ }\ \rightarrow\ Al_2\left(SO_4\right)_3$

What are the products of this equation?

$2Al^{ }\ +SO_4^{ }$

$Al_2\left(SO_4\right)_3$

35.

What are the reactants of this equation?

$CH_4\ +\ 2O_2$

$CO_2+\ 2H_2O$

36.

What are the PRODUCTS of this equation?

$CH_4\ +\ 2O_2$

$CO_2+\ 2H_2O$

37.

Are these reactants and products balanced?

yes, elements have the same number of atoms in the reactants and the products

no, because the elements are not the same

yes, because it has the same elements in the reactants and the products

no, because new substances were formed

no, the coefficients are different in the reactants vs the products

38.

In a (a) reaction, a new substance is formed.

39.

Is boiling water a chemical or physical change?

Chemical

Physical

neither

40.

Which one is NOT a characteristic of a chemical change?

Light

Precipitant

Color Change

Melting

41.

Is the following image balanced or unbalanced?

Balanced

Unbalanced

100 %

Symbols, Formulas, and Equations

Total questions: 41

Worksheet time: 10hrs 15mins

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