Accel Sem 2 Units 7 & 8 Review

What letter represents the melting point?

• A

• B

• C

• D

• E

Tags

NGSS.MS-PS1-4

What letter represents the gaseous phase in the diagram?

• A

• B

• C

• D

• E

Tags

NGSS.HS-PS3-4

How are pressure and temperature related?

• directly

• indirectly

If pressure increases the volume ________.

• increases

• decreases

• stays the same

If the temperature increases then the volume _______.

• increases

• decreases

• stays the same

If the # of moles increases then the pressure _______ which would be a ______ relationship.

• increases, direct

• decreases, direct

• increases, indirect

• decreases, indirect

If a sample of methane is 1000 mL at 98.6 kPa and  25 ^oC  is given a  pressure of 108.5 kPa and a volume of 900 mL, what is the temperature?

• 3.23 x 10⁷

• 295

• 248

• 301

How many moles of gas are in a 30.0 liter scuba  canister if the temperature of the canister is 300.0 K and  the pressure is 200.0 atmospheres?

• 244

• 0.00411

• 2.44 x 10⁴

• 20

If excess HCl is dripped onto 15.0 g of KMnO₄, what  volume of Cl₂ will be produced at 15 ^◦C and 0.959 atm?

2 KMnO₄(aq) + 16 HCl(aq) --­­> 2 KCl(aq) + 2 MnCl₂(aq) + 8 H₂O(l) +5 Cl₂(g)

• 2.34 L

• 5.84 L

• 18.7 L

• 0.304 L

How many liters does 3.75 mol of nitrogen gas occupy  at STP?

• 6.00 L

• 0.167 L

• 84.0 L

• 0.308 L