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Rockhurst Chemistry Review Second Semester

Total questions: 47

Worksheet time: 25mins

Name
Class
Date
1.

 CH4 + O2   CO2 + H2OCH_4\ +\ O_{2\ }\ \rightarrow\ CO_2\ +\ H_2O  



What kind of chemical reaction is shown?

a)

Combustion

b)

Single Replacement

c)

Double Replacement

d)

Synthesis

e)

Decomp

2.

This piece of laboratory glassware is used to perform a titration. It is very precise. What is it called?

a)

A pipette

b)

a graduated cylinder

c)

a capillary tube

d)

a burette

3.

What is the equation for Molarity (M)?

a)

g/mol

b)

mol/g

c)

mol/L

d)

L/mol

4.

 NaNO3  + Pb(NO3)2  NaNO_{3\ }\ +\ Pb\left(NO_3\right)_2\ \ \rightarrow  



What kind of reaction is this?

a)

Single replacement 

b)

Double replacement

c)

Synthesis

d)

Decomposition

e)

Combustion

5.

What kind of measurement is something in kPa?

a)

It is a temperature

b)

it is a volume

c)

it is a molarity

d)

it is a pressure

6.

What kind of relationship is shown?

a)

direct proportion

b)

indirect proportion

c)

inverse proportion

d)

quadratic proportion

7.

What does the (aq) after NaCl(aq) mean?

a)

This will form a precipitate

b)

This will make a gas

c)

This is highly reactive with water

d)

This is in solution

8.

Two aqueous solutions are mixed, and a solid results. What is the name for this class of solid?

a)

isotope

b)

alletrope

c)

precipite

d)

sublimate

9.

When you add CuSO4 to H2O, it dissolves. The copper (II) sulfate is said to be:

a)

miscible

b)

immiscible

c)

soluble

d)

insoluble

10.

All combustion reactions containing a hydrocarbon (CxHy) produce what TWO products?

a)

CO2

b)

H2O

c)

C6H12O6

d)

HCl

e)

Co

11.

The loss of electrons is called:

a)

oxidation

b)

reduction

c)

spectation

d)

precipitation

12.

 Cu2+  Cu0Cu^{2+}\ \rightarrow\ Cu^0  



In this reaction, what process is the Cu2+ species undergoing?

a)

Oxidation

b)

Reduction

c)

It is a spectator

d)

It is a catalyst 

13.

What is the oxidation state of C in CO2?

a)

+2

b)

+4

c)

-2

d)

-4

14.

What is the oxidation state of N in HNO2?

a)

+1

b)

+2

c)

+3

d)

+4

15.

What does this symbol mean in a chemical reaction?

a)

The reaction needs water to happen

b)

the reaction only happens at high temperature

c)

The reaction is unbalanced

d)

The reaction can proceed both directions

16.

Which of the following is not a property of a base?

a)

it has a pH > 7

b)

it feels slippery on skin

c)

it accepts protons

d)

it tastes sour

17.

Which of the following is an acid?

a)

H+ > OH-

b)

H+ = OH-

c)

H+ < OH-

18.

What do the [ ] around [H+] around the hydrogen ion mean?

a)

the molarity of hydrogen ions

b)

the molar mass of hydrogen ions

c)

the mass of the hydrogen ions

d)

the volume of the hydrogen ions

19.

 Al  + Fe2O3  Fe + Al2O3Al\ \ +\ Fe_2O_3\ \rightarrow\ Fe\ +\ Al_2O_3  

What kind of reaction is this?

a)

single replacement

b)

double replacement

c)

synthesis

d)

combustion

e)

decomposition 

20.

Which variable cannot change in a rigid container?

a)

Pressure

b)

Temperature

c)

Volume

d)

mols

21.

In the ideal gas law equation, what does n stand for?


PV = nRT

a)

mols

b)

molar mass

c)

grams

d)

molarity

22.

Which of the following is not a unit of pressure

a)

mmHg

b)

Torr

c)

PSI

d)

kPA

e)

they all are pressures

23.

What are the units of pH and pOH?

a)

log

b)

ln

c)

pH and pOH are units themselves

d)

M

e)

They are unitless

24.

What is the name of HBr?

a)

Bromic Acid

b)

Hydrobromic acid

c)

Bromous Acid

d)

Hydrobromous acid

25.

What is the name of NH3 - as a base?

a)

ammonium

b)

ammonia

c)

hydroammonia

d)

nitrogen trihydride

26.

 Fe + MgCl2   Mg + FeCl3 Fe\ +\ MgCl_{2\ }\rightarrow\ \ Mg\ +\ FeCl_{3\ }  



Does this reaction happen?

a)

yes

b)

NR

27.

 NI3  N2 + I2 NI_{3\ }\rightarrow\ N_{2\ }+\ I_{2\ }  



What kind of reaction is shown?

a)

single replacement

b)

double replacement

c)

synthesis

d)

decomposition

e)

combustion

28.

A gas is said to be at STP. Which pressure is it at, in ATM? (don't give a unit, just write the number)

(a)  

29.

A gas is at a temperature of 30ºC. What is it in Kelvin?

(a)  

30.

You compress a volume of air; in response the temperature will:

a)

fall

b)

stay the same

c)

rise

31.

Atmospheric pressure decreases _____ with height

a)

linearly

b)

exponentially

c)

unpredictably

d)

it doesn't decrease, it increases

32.

How many sets of parenthesis would you need to do this problem?


"How many grams of H2O are needed to make 4.5mol of HNO3?"

(3 NO2 + H2O → 2 HNO3 + NO)

a)

1 set

b)

2 sets

c)

3 sets

d)

4 sets

33.

When solving this stoichiometry question, where would the numbers in the boxes come from?

a)

The periodic table

b)

from the number of parenthesis

c)

from the balanced equation

d)

from the state of matter of the substance

34.

Which of the following species is a spectator ion?

a)

Fe0

b)

Cu2+

c)

Cl-

d)

none of these are spectators

35.

It is possible to have a temperature significantly below 0K.

a)

true

b)

false

36.

pH + pOH is always equal to which number?

a)

0

b)

1

c)

14

d)

6.02*1022

37.

In acid base reactions, we often talk about the H+ ion; this ion is effectively which subatomic particle?

a)

p+ (proton)

b)

e- (electron)

c)

n0 (neutron)

d)

none of these

38.

Which cannot be directly used in the ideal gas law when R = 0.0821?

a)

Liters

b)

atmospheres

c)

Kelvin

d)

mols

e)

molar mass, 𝓜

39.

A graph of Charles's Law is presented. Which kind of relationship does it represent?

a)

Direct Proportion

b)

Indirect Proportion

c)

Inverse Proportion

d)

Quadratic Proportion

40.

Which of the following is the ion present in nitrous acid?

a)

NO3- (the nitrate ion)

b)

NO2- (the nitrite ion)

c)

N3- (the nitride ion)

41.

Gases with the same number of moles occupy the same volume at a given pressure and temperature

a)

true

b)

false

42.

In the ideal gas law, PV=nRT, R will always be equal to which value?

a)

1

b)

821

c)

273

d)

0.0821

43.

A pH of 3 is twice as strong an acid as a pH of 6

a)

true

b)

false

44.

Only one kind of reaction can have a single product. Which is it?

a)

Single Replacement

b)

Double Replacement

c)

Synthesis

d)

Decomposition

45.

How do you know a double replacement reaction does not react (NR)

a)

it is endothermic

b)

it is exothermic

c)

all products are soluble

d)

all products are insoluble

46.

Fats are converted to soap by:

a)

strong acids

b)

strong bases

47.

Which species in undergoing reduction?

a)

Fe0

b)

Cu2+

c)

Cl-