Free Printable 📚EA7: HW25 (11.14)

Free Printable Worksheets

Worksheets

📚EA7: HW25 (11.14)

Total questions: 75

Worksheet time: 5hrs 57mins

Name

Class

Date

1.

Calculate the atomic weight/mass (Mass number) of an atom with: 11 protons 10 neutrons 11 electrons

a)

11

b)

21

c)

22

d)

10

2.

Calculate the atomic number of an atom with :
2 protons
3 neutrons
4 electrons

a)

2

b)

3

c)

4

d)

5

3.

The subatomic particle of an atom that orbits around the nucleus and has a negative charge.

a)

Proton

b)

Neutron

c)

Electron

d)

Quark

4.

The subatomic particle that is located in the nucleus of an atom with a neutral charge.

a)

Proton

b)

Neutron

c)

Electron

d)

Quark

5.

These determine the reactivity of an element.

a)

Valence electrons

b)

Valence Protons

c)

Valence Neutrons

d)

Valence Quark

6.

How many protons are in Cadmium?

a)

112.411

b)

170

c)

64

d)

48

7.

How many neutrons (round the mass number) does Argon have in it's nucleus?

a)

39.948

b)

58

c)

22

d)

18

8.

Lithium is located in Group 1 of the Periodic Table, which element has similar characteristics of Lithium?

a)

Cesium (Cs)

b)

Beryllium (Be)

c)

Neon (Ne)

d)

Magnesium (Mg)

9.

Arsenic is located in Group 15 of the Periodic Table. How many valence electrons does the arsenic atom have?

a)

33

b)

5

c)

15

d)

75

10.

The ______________ is the number of protons + neutrons in the nucleus of an atom.

a)

atomic number

b)

net charge

c)

chemical symbol

d)

mass number

11.

Which element has 6 protons?

a)

N

b)

C

c)

O

d)

B

12.

What is the formula to solve for the neutron?

a)

Mass Number + Atomic Number= Neutrons

b)

Mass Number x Atomic Number = Neutrons

c)

Mass Number - Atomic Number = Neutrons

d)

Mass Number + Number of Protons = Neutron

13.

Where is the neutron located?

a)

In the loose nucleus with the electron

b)

In the dense nucleus with the protons

c)

In the electron cloud

d)

The nucleus floats on orbitals

14.

What is the charge of the neutron?

a)

Negative

b)

Positive

c)

electrical charge

d)

Neutral (no charge)

15.

How many neutrons does the an element with an atomic number of 3 and a mass number of 6.9 (round the mass number) contain?

a)

6.9

b)

4

c)

3

d)

7

16.

How many neutrons does oxygen have (round the mass number)?

a)

16

b)

15.99

c)

8

d)

Doesn't contain any neutrons

17.

An atom with 19 protons, and 19 electrons and a mass number of 39 has how many neutrons?

a)

19

b)

39

c)

20

d)

58

18.

An atom has 5 protons, 6 neutrons, and 5 electrons. What is the charge of the atom's nucleus?

a)

-5

b)

+6

c)

+5

d)

-6

19.

How many neutrons are in a Gold atom (round the mass number)?

a)

79

b)

196

c)

118

d)

275

20.

How many neutrons does it have (round the mass number)?

a)

77

b)

78

c)

54

d)

131

21.

How many neutrons does it have (round the mass number)?

a)

45

b)

44

c)

34

d)

78

22.

How many neutrons does it have (round the mass number)?

a)

16

b)

15

c)

30

d)

31

23.

How many neutrons does it have (round the mass number)?

a)

18

b)

19

c)

17

d)

35

24.

How many neutrons does it have (round the mass number)?

a)

20

b)

21

c)

19

d)

39

25.

How many neutrons does it have (round the mass number)?

a)

16

b)

17

c)

32

d)

18

26.

How many neutrons does it have (round the mass number)?

a)

45

b)

44

c)

35

d)

80

27.

a)

Alkali

b)

Alkaline

c)

Halogen

d)

Noble Gases

28.

a)

Alkali

b)

Alkaline Earth

c)

Halogen

d)

Noble Gases

29.

a)

Alkali

b)

Alkaline Earth

c)

Halogens

d)

Noble Gases

30.

a)

Alkali

b)

Alkaline

c)

Halogen

d)

Noble Gases

31.

a)

Transition Metals

b)

Inner Transition Metals

c)

Metals

d)

Metalloids

32.

a)

Transition Metals

b)

Post Transition Metals

c)

Non Metals

d)

Metalloids

33.

a)

Transition Metals

b)

Post Transition Metals

c)

Non Metals

d)

Metalloids

34.

2 H₂O₂ ---> 2H₂O + O₂

a)

decomposition

b)

synthesis

c)

single replacement

d)

double replacement

35.

4 Fe + 3O₂ ---> 2 Fe₂O₃

a)

decomposition

b)

combustion

c)

synthesis

d)

single replacement

36.

2 Al + 3 CuCl₂ ----> 3 Cu + 2 AlCl₃

a)

combustion

b)

synthesis

c)

double replacement

d)

single replacement

37.

C₃H₈ + 5 O₂ ---> 3 CO₂ + 4 H₂O

a)

single replacement

b)

double replacement

c)

combustion

d)

decomposition

38.

Ca + 2 NaF ---> CaF₂ + 2 Na

a)

synthesis

b)

combustion

c)

decomposition

d)

single replacement

39.

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.

40.

A + B → AB : is the general form for which reaction type?

a)

Double Replacement

b)

Synthesis

c)

Combustion

d)

Decomposition

41.

Which of the following is the general formula for a decomposition reaction?

a)

A + B → AB

b)

AB → A + B

c)

AB + C → AC + B

d)

AB + CD → AC + BD

42.

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.

43.

AB + CD = AD + CB

a)

Double Replacement

b)

Single Replacement

c)

Combustion

d)

Decomposition

44.

A + BC = B + AC

a)

Single Replacement

b)

Combustion

c)

Double Replacement

d)

Synthesis

45.

AB = A + B

a)

Decomposition

b)

Single Replacement

c)

Combustion

d)

Synthesis

46.

A SUBSCRIPT IS...

a)

Number to the left of the element symbol

b)

Number to the right of the element symbol

c)

the scientific name for a group of atoms

d)

A substance made of only one kind of atom

47.

How many ELEMENTS are in C₆H₁₂O₆?

a)

1

b)

12

c)

3

d)

6

48.

Are there any compounds on the periodic table?

a)

yes there are many

b)

no because only elements are on the periodic table

c)

I think they are?

d)

there is no way to tell

49.

2 RbNO₃ + BeF₂ ---> Be(NO₃)₂+ 2 RbF

a)

Combustion

b)

Double Replacement

c)

Single Replacement

d)

Synthesis

50.

2 MgI₂ + Mn(SO₃)₂ ---> 2 MgSO₃ + MnI₄

a)

Combustion

b)

Decomposition

c)

Double Replacement

d)

Single Replacement

51.

O_{3 --->}O + O2

a)

Synthesis

b)

Single Replacement

c)

Decomposition

d)

Combustion

52.

Pb + FeSO₄ ---> PbSO₄+ Fe

a)

Double Replacement

b)

Synthesis

c)

Combustion

d)

Single Replacement

53.

C₆H₁₂ + 9 O₂ ---> 6 CO₂ + 6 H₂O

a)

Combustion

b)

Double Replacement

c)

Single Replacement

d)

Synthesis

54.

2 NO₂ ---> 2 O₂ + N₂

a)

Synthesis

b)

Single Replacement

c)

Decomposition

d)

Combustion

55.

2 C₅H₅ + Fe ---> Fe(C₅H₅)₂

a)

Synthesis

b)

Decomposition

c)

Combustion

d)

Double Replacement

56.

2 C₄H₆+ 11 O₂ ---> 8 CO₂ + 6 H₂O

a)

Single Replacement

b)

Double Replacement

c)

Synthesis

d)

Combustion

57.

2 AgNO₃ + Cu ---> Cu(NO₃)₂ + 2 Ag

a)

Single Replacement

b)

Double Replacement

c)

Synthesis

d)

Combustion

58.

P₄ + 3 O₂ ---> 2 P₂O₃

a)

Single Replacement

b)

Combustion

c)

Synthesis

d)

Decomposition

59.

What kind of reaction is this:
2H₂ + O₂ --> 2H₂O

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

60.

What kind of reaction is this:
4Fe + 3O₂ → 2Fe₂O₃

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

61.

What kind of reaction is this:
2H₂O₂ →2 H₂O + O₂

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Combustion

62.

The reaction below is an example of?
AgNO₃ + NaCl → AgCl + NaNO₃

a)

Single Replacement

b)

Double Replacement

c)

Decomposition

d)

Combustion

63.

What kind of reaction is this:
CaCO₃ + Ag₂SO₄ → CaSO₄+ Ag₂CO₃

a)

Decomposition

b)

Single Replacement

c)

Double Replacement

d)

Combustion

64.

Which of the following general formulas represents a single-displacement reaction?

a)

AB → A + B

b)

A + B → AB

c)

A + BC → AC + B

d)

AB + CD → AD + CB

65.

Which type of reaction is:

2 NaBr + Ca(OH)₂ → CaBr₂ + 2 NaOH

a)

Synthesis

b)

Single Replacement

c)

Double Replacement

d)

Decomposition

66.

Which type of reaction is:

2 H₃AsO₄ → As₂O₅ + 3 H₂O

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

67.

Which type of reaction is:

2 NH₃ + H₂SO₄ → (NH₄)₂SO₄

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

68.

Which type of reaction is:

3 Pb + 2 H₃PO₄ → 3 H₂ + Pb₃(PO₄)₂

a)

Synthesis

b)

Single Replacement

c)

Double Replacement

d)

Decompostion

69.

Which type of reaction is:

4 (NH₄)₃PO₄ + 3 Pb(NO₃)₄ → 12 NH₄NO₃ + Pb₃(PO₄)₄

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

70.

the starting materials in a chemical reaction

a)

Products

b)

Reactants

c)

Starters

d)

Enders

71.

a substance that is formed as the result of a chemical reaction

a)

Product

b)

Reactant

c)

Starters

d)

Enders

72.

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

73.

Ionic/Covalent/Metallic Bond: H₂O

a)

Ionic

b)

Covalent

c)

Metallic

74.

Ionic Bonding is:

a)

The transfer of protons

b)

The transfer of nuetrons

c)

The transfer of electrons

d)

None Of the above

75.

Which elements usually form positive ions (cations)?

a)

Metals

b)

Non Metals

Reset

Similar Resources on Wayground

70 questions

Y7 U8 Changes to Materials

Worksheet

•

7th Grade

70 questions

Earth's Spheres

Worksheet

•

7th Grade

79 questions

2024 6th Grade science Review #2

Worksheet

•

6th - 8th Grade

72 questions

Potential And Kinetic Energy Change

Worksheet

•

7th Grade

77 questions

Unit 6 Review

Worksheet

•

7th Grade

75 questions

BIG Chemistry Test Review

Worksheet

•

5th - 9th Grade

71 questions

Gr 7 Science Topic #7 Review

Worksheet

•

6th - 8th Grade

73 questions

Physical Science Benchmark I

Worksheet

•

6th - 8th Grade