Chem Final

Metric Conversions

100

Can cubic centimeters be used to calculate volume?

Yes

200

How many milliliters are in a meter?

1000mL 

300

What is the value of 7,000,002 in scientific notation?

7.1 * 10⁶

400

How many gallons are in 345 ounces?

(1 gallon = 128 ounces)

2.70 gallons

500

How many feet are in 40 centimeters?

(1 foot = 12 inches) (2.54 centimeters = 1 inch)

1.31 feet

Chemical Formulas

100

What is the formula for water?

H₂O

200

What is the formula for sulfuric acid?

H₂SO₄

300

What is the chemical formula for sulfur dioxide?

SO₂

400

What is the chemical formula for magnesium chloride?

MgCl₂

500

What is the chemical formula for sodium sulfate?

Na₂SO₄

Chemical Reactions

100

What are the reactant/s in the following balanced equation:

Fe(OH)2(s)  +  2KCl(aq)  →  FeCl2(aq)  +  2KOH(aq)

Fe(OH)2(s)  +  2KCl(aq)

200

What type of reaction is 2NaClO3(s) → 2NaCl(aq) + 3O2(g

Decomposition 

300

In a combustion reaction, what always reacts with a hydrocarbon, and what are always the products?

(Two part question)

Oxygen ; Water and Carbon Dioxide

400

What are the four states of matter that are included in chemical equations, and their symbols?

Liquid (l), Gas (g), Aqueous (aq), and Solid (s)

500

Balance the following equation

_ Al + _ HCl ---> _ AlCl3 + _ H2

2 Al + 6 HCl ---> 2 AlCl3 + 3 H2

Moles/Stoichiometry

100

1 mole of any substance is equal to how many molecules? 

6.02 x 10²³ molecules

200

2 Na + 2 H2O --> 2 NaOH + H2

What is the molar ratio of sodium to hydrogen gas? 

2:1

300

Balance the following equation 

_NaOH + _CO2 ---> _Na2CO3 + _H2O

2 NaOH + CO2 ---> Na2CO3 + H2O

400

If a theoretical yield 45 g, and an actual yield is 32 g, what is the percent yield?

71.1% 

500

What is the molar mass for copper II sulfate? 

159.609

Gas Law Equations

100

What law should be used when dealing with changing pressure and volume? 

Boyle's Law

200

When a balloon is put into an ice bath, making it colder, what will happen to the volume of gas in the balloon?

Decrease

300

If you have 250 kPa, what is the pressure in mmHg?

1875 mmHg

400

What are the four units of the universal gas constant?

moles, atmospheres, kelvin, liters

500

A gas occupies a volume of 6240 mL at a temperature of 298 K. What volume will this gas occupy at 328 K if the pressure is held constant?

6868 mL