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POST SLO ASSESSMENT Honors Chemistry Exam

Total questions: 75

Worksheet time: 2hrs 31mins

Name
Class
Date
1.

The smallest unit of matter is called an (a)   .

2.

  1. A (a)   has a positive charge and is found in the nucleus.

3.

A (a)   has no charge.

4.

  1. The (a)   tells the number of protons.

5.

The (a)   equals protons + neutrons.

6.

A (a)   is a positively charged ion.

7.

A (a)   is a negatively charged ion.

8.

  1. Groups 3–12 are known as (a)   .

9.

  1. Group 17 elements are the (a)   .

10.

  1. An (a)   is formed between a metal and nonmetal.

11.

  1. A (a)   is a charged group of atoms acting as one.

12.

  1. A (a)   forms when atoms share electrons.

13.

A (a)   is a neutral group of covalently bonded atoms.

14.

  1. The prefix for 5 is (a)   .

15.

(a)   reactions break one substance into many.

16.

(a)   reactions combine substances into one.

17.

(a)   reactions switch one element with another.

18.

  1. (a)   reactions swap ions between compounds.

19.

(a)   reactions involve oxygen and produce heat.

20.

  1. A (a)   is a number used to balance equations. Or the number written before a formula

21.

The (a)   states matter cannot be created or destroyed.

22.

  1. A (a)   shows the number of atoms in a formula.

23.

  1. A (a)   has equal atoms on both sides.

24.

(a)   is the spontaneous release of energy/particles.

25.

An (a)   is a helium nucleus emitted in decay.

26.

  1. A (a)   is a high-speed electron emitted.

27.

A (a)   is high-energy radiation.

28.

(a)   is the time required for half a sample to decay.

29.

  1. (a)   is the process of becoming more stable.

30.

  1. A (a)   reaction absorbs heat.

31.

A (a)   reaction releases heat.

32.

A (a)   is 6.02 × 10²³ particles.

33.

  1. (a)   is the mass of one mole of a substance.

34.

What is the correct name of the compound Fe3(PO4)2?

a)

iron (III) phosphate

b)

iron phosphate

c)

tri iron diphosphate

d)

iron (II) phosphate

35.

Which of the following is the correct formula for a compound formed from Mg and P?

a)

MgP

b)

MgP2

c)

Mg2P3

d)

Mg3P2

36.

The nucleus of an atom contains:

a)

protons only

b)

protons and neutrons

c)

protons and electrons

d)

neutrons and electrons

37.

Pure water is an example of a(n):

a)

compound

b)

element

c)

mixture

d)

ion

38.

An example of a p-block element is:

a)

I

b)

W

c)

K

d)

Eu

39.

An atom that has 13 protons, 14 neutrons and 10 electrons would have:

a)

a charge of 1-

b)

a charge of 3+

c)

a charge of 3-

d)

a charge of 1+

40.

I-126 and I-127 are examples of:

a)

ions

b)

isotopes

c)

ionic compounds

d)

molecular compounds

41.

The mass number of an element that has 12 protons, 13 neutrons and 10 electrons is:

a)

12

b)

22

c)

13

d)

25

42.

175 Hg2+

80

has how many protons, neutrons and electrons?

a)

175 protons, 80 neutrons and 2 electrons

b)

80 protons, 175 neutrons and 82 electrons

c)

95 protons, 80 neutrons and 82 electrons

d)

80 protons, 95 neutrons and 78 electrons

43.

The most dangerous and powerful type of radiation is:

a)

alpha

b)

beta

c)

gamma

44.

Identify the element formed when Pu-244 undergoes alpha decay:

a)

Cm-248

b)

U-240

c)

Am-244

d)

Pu-240

45.

The correct electron configuration of Br is:

a)

1s22s23s23p103d144s24p5

b)

1s22s22p63s23p63d104s24p5

c)

1s22s22p103s23p63d144s24p54d10

d)

1s22s22p63s23p64s23d104p5

46.

The alkaline earth metal in the 3rd period is:

a)

Na

b)

Ca

c)

Mg

d)

Al

47.

Which element has the highest electronegativity?

a)

Mg

b)

P

c)

Cl

d)

Ar

48.

How many electrons would you expect P to gain or lose in order to have a full Octet of valence electrons?

a)

gain 3

b)

lose 3

c)

lose 5

d)

it already has a full Octet

49.

You have a compound that when heated, melts on a hot plate. When dissolved in water, it is a poor conductor of electricity. It is most likely a(n):

a)

ionic compound

b)

molecular (covalent) compound

c)

metal

50.

What is the correct formula for tetraphosphorus pentoxide?

a)

(PO4)5

b)

K4O5

c)

PO4

d)

P4O5

51.
What particle completes this reaction?
a)
alpha particle
b)
beta particle
c)
gamma particle
d)
neutron
52.
Solve this equation for alpha decay.
22688Ra = ___ + 42He
a)
22286Rn
b)
22689Ac
c)
22484Po
d)
22588Ra
53.

Classify the following chemical reaction


BaCl2(aq) + K2CrO4(aq) --> BaCrO4(s) + 2KCl(aq)




a)

Composition/Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

54.

Classify the following chemical reaction.


Si(s) + 2Cl2(g) --> SiCl4(l)

a)

Composition/Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

55.

Classify the follow chemical reaction.


2C6H6 + 15O2 --> 6H2O+ 12CO2

a)

Composition/Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

56.
__BF3 + __Li2SO3 --> __B2(SO3)3 + __LiF
a)
2,3,1,3
b)
2,3,1,6
c)
4,4,2,12
d)
3,3,1,9
57.
__C6H12O6 + __O2 --> __H2O + __CO2
a)
1,6,6,6
b)
already balanced
c)
1,6,1,6
d)
2,12,12,12
58.
_AgNO3 + _Cu →_Cu(NO3)2 + _Ag
a)
2 AgNO3 + 2 Cu → 3 Cu(NO3)2 + 1 Ag
b)
2 AgNO3 + 1 Cu → 1 Cu(NO3)2 + 2 Ag
c)
1 AgNO3 + 2 Cu → 2 Cu(NO3)2 + 1 Ag
d)
3 AgNO3 + 2 Cu → 3 Cu(NO3)2 + 2 Ag
59.
__(NH4)3PO4 + __Pb(NO3)4 --> __Pb3(PO4)4 + __NH4NO3
a)
2,1,1,6
b)
1,2,2,3
c)
4,3,1,12
d)
4,2,1,12
60.

Fusion

a)

Creation of energy by joining the nuclei of two stable hydrogen atoms to form helium.

b)

Creation of energy by joining the nuclei of two helium atoms to form hydrogen.

c)

Creation of energy by joining the nuclei of two hydrogen isotope atoms to form helium.

61.
What is the half-life of iodine-131?
a)
32 days
b)
8 days
c)
16 days
d)
24 days
62.

Which nuclear process if shown in the picture?

a)

alpha decay

b)

beta decay

c)

fusion

d)

fission

63.

What number represents an element's identity? (How do we know what element it is?)

a)

Atomic Smell

b)

Atomic Number

c)

Atomic Mass

d)

Atomic Temperature

64.

If a proton is added or removed from an atom, what happens?

a)

It becomes a different element.

b)

It becomes a different isotope.

c)

Nothing happens.

65.

What is the difference between Neon-20 and Neon-22?

a)

They have different numbers of electrons.

b)

They have different numbers of neutrons.

c)

Only 1 is radioactive.

d)

No difference.

66.

How many neutrons are in this isotope?

a)

20

b)

41

c)

61

d)

21

67.

Ice cream melting is an example of an __________ process.

a)

endothermic

b)

exothermic

68.

Sweating is an __________________ process because heat is released.

a)

endothermic

b)

exothermic

69.

When heat flows from system to the surroundings that is an example of an ________________ process.

a)

exothermic

b)

endothermic

70.
What is the name of N2O3
a)
Nitrogen trioxide
b)
Dinitrogen oxide
c)
Dinitrogen trioxide
d)
Nitrogen oxide
71.
What is the chemical formula for Tetrasulfur pentoxide?
a)
SO
b)
S4O
c)
S4O5
d)
S5O4
72.
Ionic bonds are between...
a)
Metal and Non-metal
b)
Non-metal and Non-metal
c)
Metal and Metal
73.

Which is the correct formula for the compound: Calcium Oxide

a)

CaO

b)

CaO2

c)

Ca2O

74.

Which is the correct formula for the compound: Barium Hydroxide

a)

BaOH

b)

Ba(OH)2

c)

BaOH2

d)

Ba2OH

75.

The name of FeCl₂ is

a)

iron chloride

b)

iron (II) chloride

c)

iron (I) chloride

d)

iron dichloride

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