Asked by ye mum

Which phase change is the opposite of boiling?(1 point)
Responses

evaporation
evaporation

melting
melting

condensation
condensation

freezing
Answered by ye mum
Which table correctly shows the relationships between volume, pressure, and temperature of an enclosed gas?(1 point)
Responses

Quantities Relationship
volume and temperature directly proportional
pressure and volume directly proportional
pressure and temperature inversely proportional
Quantities Relationship volume and temperature directly proportional pressure and volume directly proportional pressure and temperature inversely proportional

Quantities Relationship
volume and temperature inversely proportional
pressure and volume inversely proportional
pressure and temperature directly proportional
Quantities Relationship volume and temperature inversely proportional pressure and volume inversely proportional pressure and temperature directly proportional

Quantities Relationship
volume and temperature directly proportional
pressure and volume inversely proportional
pressure and temperature directly proportional
Quantities Relationship volume and temperature directly proportional pressure and volume inversely proportional pressure and temperature directly proportional

Quantities Relationship
volume and temperature inversely proportional
pressure and volume directly proportional
pressure and temperature directly proportional
Answered by ye mum
Which observation is inconsistent with the ideal gas law?(1 point)
Responses

When temperature is held constant and volume increases, the pressure increases.
When temperature is held constant and volume increases, the pressure increases.

When volume is held constant and the temperature increases, the pressure increases.
When volume is held constant and the temperature increases, the pressure increases.

When pressure is held constant and volume increases, the temperature increases.
When pressure is held constant and volume increases, the temperature increases.

When nothing is held constant and pressure and volume both increase, the temperature increases.
Answered by ye mum
A gaseous product of a reaction is collected at 280K and 0.95 atm. Given R=0.0821L⋅atmmol⋅K
R
=
0.0821
L
⋅
atm
mol
⋅
K
, what is the molar mass of the gas, in grams per mole, if 5.49 g of gas occupies 4.92 L?(1 point)
Responses

133 g/mol
133 g/mol

0.04 g/mol
0.04 g/mol

27 g/mol
27 g/mol

24 g/mol
Answered by ye mum
When salt dissolves completely into water, which term is used to describe the water? (1 point)
Responses

solute
solute

solution
solution

solvent
solvent

concentration
Answered by ye mum
Which statement best describes what it means when something is classified as a strong acid?(1 point)
Responses

It resists dissociating into ions in solution.
It resists dissociating into ions in solution.

It is present in low quantities in a solution.
It is present in low quantities in a solution.

It easily dissociates into ions in solution.
It easily dissociates into ions in solution.

It is present in large quantities in a solution.
Answered by ye mum
Based on patterns in the periodic table, which list shows the acids in order from strongest to weakest?

(1 point)
Responses

H2S, PH3, HCl
H 2 S, PH 3 , HCl

PH3, H2S, HCl
PH 3 , H 2 S, HCl

HCl, H2S, PH3
HCl, H 2 S, PH 3
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