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ionic

Total questions: 57

Worksheet time: 34mins

Name
Class
Date
1.

What is the correct formula for Sodium Chloride?

a)

SCl

b)

NaCl

c)

SC

d)

NaCl2

2.

Name this ionic compound: Al2O3

a)

Dialuminum oxide

b)

Aluminum oxygen

c)

Oxygen Aluminide

d)

Aluminum oxide

3.

Write the chemical formula for K and Br (potassium bromide).

a)

KBr

b)

K2Br

c)

KBr3

d)

KBr2

4.

Write the chemical formula for Na and S (sodium sulfide).

a)

NaS

b)

S2S2

c)

Na2S

d)

NaS2

5.

Lead Chloride is an ionic compound, made up from Pb2+ ions and Cl- ions. Which is the correct formula for this compound?

a)

PbCl3

b)

PbCl

c)

PbCl4

d)

PbCl2

6.

Magnesium Hydroxide is an ionic compound made up from Mg2+ and OH- ions. Which is its correct formula?

a)

MgOH

b)

MgOH2

c)

Mg(OH)2

d)

MgO

7.

Name the following ionic compound: BeCl2

a)

beryllium chlorine

b)

beryllium II chloride

c)

beryllium chloride

d)

beryllium dichloride

8.

Name the following ionic compound: Cs2S

a)

cesium sulfide

b)

cesium sulfate

c)

cesium II sulfate

d)

cesium II sulfide

9.

When naming a compound, what must the last part be?

a)

the element with "ide" at the end

b)

the element with the ending "ite"

c)

the name of the element

d)

the element with "ide" at the end, unless its a polyatomic ion

10.

LiBr is called

a)

lithium bromine

b)

lithium (I) bromine

c)

lithium bromide

d)

lithuim (I) bromide

11.
When naming ionic compounds you always write the name of the positive element  _______ .
a)
first
b)
second
c)
with "ide"
d)
with a prefix
12.

The name of FeCl₂ is

a)

iron chloride

b)

iron (II) chloride

c)

iron (I) chloride

d)

iron dichloride

13.

LiBr is called

a)

lithium bromine

b)

lithium (I) bromine

c)

lithium bromide

d)

lithuim (I) bromide

14.

Name the following ionic compound: BeCl2

a)

beryllium chlorine

b)

beryllium II chloride

c)

beryllium chloride

d)

beryllium dichloride

15.

Name the following ionic compound: Cs2S

a)

cesium sulfide

b)

cesium sulfate

c)

cesium II sulfate

d)

cesium II sulfide

16.

Which of the following combinations would need roman numerals in the name?

a)

potassium + fluorine

b)

beryllium + oxygen

c)

boron + iodine

d)

gold + oxygen

17.

When naming a compound, what must the last part be?

a)

the element with "ide" at the end

b)

the element with the ending "ite"

c)

the name of the element

d)

the element with "ide" at the end, unless its a polyatomic ion

18.

The number that tells you if an ion has lost or gained electrons

a)

atomic number

b)

oxidation number

c)

mass number

d)

electron number

19.

How many atoms of Iron are in this compound?

a)

1

b)

2

c)

3

d)

4

20.

How many atoms of hydrogen are in

C6H12O6

a)

6

b)

12

c)

18

d)

2

21.

How many different elements are present in H2COCH2

a)

5

b)

4

c)

3

d)

2

22.

Calculate the number of Oxygen atoms in Al(OH)3

a)

1

b)

2

c)

3

d)

4

23.

How many total POTASSIUM atoms are in this formula?

a)

8

b)

2

c)

4

d)

12

24.

How many elements are in this chemical formula? NaHCO3NaHCO_3  

a)

1

b)

2

c)

3

d)

4

25.

Coefficients in chemical formulas...

a)

Multiply just the first atom

b)

Add to the subscripts at the end of the molecule

c)

Multiply elements without subscripts

d)

Multiply EVERYTHING!

26.

C3H5(NO3)3

a)

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

b)

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

c)

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

d)

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

27.

How many atoms of Hydrogen are in H2O

a)

1

b)

2

c)

3

d)

more than 3

28.

Calculate the number of Oxygen atoms in Al(OH)3

a)

1

b)

2

c)

3

d)

4

29.

How many Magnesium atoms are in 10MgCl2?

a)

10

b)

5

c)

20

30.

How many atoms are there TOTAL in H2SO4 ?

a)

6

b)

5

c)

7

d)

3

31.

How many Sodium atoms are in 6NaCl?

a)

1

b)

12

c)

6

32.
Which is the correct formula for:
 three hydrogen (H)
one sulfur (S)
four oxygen (O)
a)
H3SO4
b)
HSO4
c)
H4S3O
d)
H2O
33.

How many elements are in this chemical formula? NaHCO3NaHCO_3  

a)

1

b)

2

c)

3

d)

4

34.

How many atoms of Hydrogen are in this compound?

a)

1

b)

2

c)

3

d)

4

35.
The red numbers in the image below represent ________
a)
subscripts
b)
coefficients
c)
I don't know, and don't want to try
d)
None of the answers are correct
36.
The blue numbers in the image below represent ________
a)
I don't know, and don't want to try
b)
coefficients
c)
subscripts
d)
none of the answers are correct
37.

How many atoms of Iron(Fe) are in this compound?

a)

5

b)

2

c)

3

d)

4

38.

How many atoms of oxygen(O) are in

3Fe2O3

a)

6

b)

9

c)

1

d)

3

39.

Select the chemical formula for this molecule?

a)

B1F3

b)

BF

c)

BF3

d)

FB

40.

Which of the following shows the elements with correct numbers of ATOMS for this molecule

H2SO4

a)

H = 2, S = 4, O = 4

b)

H = 2, S = 1, O = 4

c)

H = 8, S = 4, O = 4

d)

H = 2, SO = 4

41.

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

a)

Coefficient

b)

Subscript

c)

Exponent

d)

Coordinator

42.

What is the total number of atoms in this formula? H2O2H_2O_2  

a)

2

b)

4

c)

3

43.

Which of the following is a molecule of a compound?

a)

H2H_2

b)

Cl2Cl_2

c)

H2OH_2O

d)

F2F_2

44.

How many TOTAL atoms are in this formiula?

NaOH

(a)  

45.

How many TOTAL atoms are in this formiula?

HNO3

(a)  

46.

How many Oxygen atoms are in this formiula?

Mg(OH)2

(a)  

47.

How many Hydrogen atoms are in this formiula?

Mg(OH)2

(a)  

48.

How many Magnesium atoms are in this formiula?

MgCl2

(a)  

49.

How many Magnesium atoms are in this formiula?

MgCl2

(a)  

50.

How many Carbon atoms are in this formiula?

K2CO3

(a)  

51.

How many Phosphorus atoms are in this formiula?

Sr3(PO4)2

(a)  

52.

How many Oxygen atoms are in this formiula?

Sr3(PO4)2

(a)  

53.

How many Manganeese atoms are in this formiula?

Ba(MnO4)2

(a)  

54.

How many Oxygen atoms are in this formiula?

Ba(MnO4)2

(a)  

55.

How many TOTAL atoms are in this formiula?

H2SO4

(a)  

56.

How many Carbon atoms are in this formiula?

Al2(CO3)3

(a)  

57.

How many Oxygen atoms are in this formiula?

Al2(CO3)3

(a)  

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