Free Printable VL7: HW 9.27

1.

What is a cation's charge?

a)

positive

b)

negative

c)

neutral

d)

depends on the element

2.

What is an anion's charge?

a)

positive

b)

negative

c)

neutral

d)

depends on the element's charge

3.

The atomic number tells you what?

a)

number of electrons

b)

number of protons

c)

number of neutrons

d)

both electrons and protons in an atom.

4.

If an atom of oxygen has a charge of -2, how many electrons does the atom have?

a)

18

b)

6

c)

8

d)

10

5.

If an atom of nickel has a charge of +3, how many electrons does the atom have?

a)

28

b)

25

c)

26

d)

31

6.

What charge does an atom have if it LOSES an electron?

a)

Positive (+)

b)

Negative (-)

7.

Ions are:

a)

atoms with a positive or negative charge

b)

atoms with no charge

c)

atoms with ONLY a positive charge

d)

atoms with ONLY a negative charge

8.

How many total electrons does Mg⁺² (a magnesium ion) have?

a)

10

b)

12

c)

14

d)

22

9.

How many total electrons does O^-2 (an oxide ion) have?

a)

8

b)

10

c)

6

d)

18

10.

How many total electrons does Na⁺¹ (a sodium ion) have?

a)

10

b)

11

c)

12

d)

22

11.

How many electrons does Oxygen have as a Neutral atom?

a)

8

b)

6

c)

2

d)

10

12.

An atom becomes _________ when it gains electrons.

a)

Positive

b)

Negative

c)

Neutral

d)

Invinsible

13.

An atom becomes _______ when it loses electrons.

a)

Positive

b)

Negative

c)

Neutral

d)

Invinsible

14.

What is the charge on a Hydrogen ion?

a)

+1

b)

1

c)

2

15.

What is the charge on an Aluminium ion?

a)

3

b)

+3

c)

+2

d)

+1

16.

What is the charge on a chloride ion?

a)

-1

b)

1

c)

+2

d)

+1

17.

Balanced or NOT: 2N₂O₅--->2N₂ + 5O₂

a)

Balanced

b)

NOT

18.

Reactants: 2Mg + O₂ ---> 2MgO

a)

Mg and O

b)

MgO

c)

Mg and MgO

d)

O and MgO

19.

Balanced or NOT: C₅H₁₂ + 6O₂ ---> 5CO₂ + 6H₂O

a)

Balanced

b)

NOT

20.

What do atoms that form positive ions tend to do?

a)

Tend to lose electrons

b)

Tend to lose protons

c)

Tend to gain electrons

d)

Tend to gain protons

21.

Balanced or NOT: AlCl₃ + 3H₂O ---> Al(OH)₃ + 3HCl

a)

Balanced

b)

NOT

22.

Balanced or NOT:

a)

Balanced

b)

NOT

23.

Balanced or NOT: 4HOCl + C ---> 2H₂O + CO₂ + 2Cl₂

a)

Balanced

b)

NOT

24.

What is the Law of Conservation of Mass?

a)

It states that no matter can be created or destroyed.

b)

It states that no energy can be created or destroyed.

c)

It states that matter can be created or destroyed.

d)

It states that no sound can be created or destroyed.

25.

Balanced or NOT: Al + O₂ ---> 2Al₂O₃

a)

Balanced

b)

NOT

26.

What do atoms that form positive ions tend to do?

a)

lose electrons

b)

gain electrons

c)

lose protons

d)

gain protons

27.

Isotopes are elements with a different amount of

a)

protons

b)

neutrons

c)

electrons

d)

atoms

28.

an element will always have the same number of

a)

neutrons

b)

protons

c)

isotopes

d)

atoms

29.

Ion with a positive charge

a)

cation

b)

anion

c)

molecule

d)

ionic bond

30.

When the number of electrons equals the number of protons the atom has what charge?

a)

sponge bob

b)

positive charge

c)

negative charge

d)

neutral charge

31.

An atom that has gained or lost electrons is called ...

a)

a winner

b)

an isotope

c)

an ion

d)

a loser

32.

How many O's are in Al₂(SO₄)₃

a)

4

b)

12

c)

7

d)

24

33.

How many atoms are there TOTAL in:
H₂SO₄

a)

6

b)

5

c)

7

d)

3

34.

A subscript is the small number below a(n) ________ that tells the number of _______ of that element.

a)

element symbol; atoms

b)

atom; element symbol

c)

subscript; protons

d)

compound; elements

35.

How many elements are in C₆H₁₂O₆?

a)

1

b)

2

c)

3

d)

4

36.

10 Protons

a)

Ne

b)

O

c)

F

d)

Ni

37.

CARBON

a)

C

b)

Ca

c)

Cl

d)

Cu

38.

HELIUM

a)

H

b)

He

c)

Hl

d)

Hm

39.

HYDROGEN

a)

H

b)

He

c)

Hy

d)

Hd

40.

FLUORINE

a)

F

b)

Fl

c)

Fu

d)

Fe

41.

NEON

a)

N

b)

Ne

c)

No

d)

Nn

42.

NITROGEN

a)

N

b)

Ne

c)

Ni

d)

Nt

43.

OXYGEN

a)

O

b)

Ox

c)

Oy

d)

Og

44.

BERYLLIUM

a)

B

b)

Bo

c)

Be

d)

Br

45.

LITHIUM

a)

L

b)

Li

c)

Lt

d)

Lh

46.

1 Proton

a)

H

b)

He

c)

Ho

d)

Hs

47.

2 Protons

a)

H

b)

He

c)

Ho

d)

Hs

48.

4 Protons

a)

Li

b)

He

c)

Be

d)

Ba

49.

3 Protons

a)

Li

b)

He

c)

La

d)

Cs

50.

5 Protons

a)

B

b)

He

c)

Be

d)

Ba

51.

6 Protons

a)

B

b)

C

c)

Ca

d)

Ba

52.

7 Protons

a)

N

b)

Ni

c)

Na

d)

Ba

53.

8 Protons

a)

N

b)

O

c)

S

d)

C

54.

9 Protons

a)

N

b)

O

c)

F

d)

C

55.

10 Protons

a)

Ne

b)

O

c)

F

d)

Ni

VL7: HW 9.27

Total questions: 55

Worksheet time: 42mins

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