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Vlad1618 [11]
3 years ago
10

Please help me with this it is for a test that i cant fail please help me.

Chemistry
2 answers:
Evgen [1.6K]3 years ago
4 0

Answer:

condensation

Explanation:

Kryger [21]3 years ago
4 0

Answer: The first one

Explanation: its evaporation

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a sample of ammonia liberates 5.66 kj of heat as it solidifies at its melting point . what is the mass of the sample?
Reil [10]
The correct answer for the question that is being presented above is this one: "<span>16.728 g."</span>

Given that 
ΔHsolid = -5.66 kJ/mol.
This means that 5.66 kJ of heat is released when 1 mole of NH3 solidifies 

When 5.57 kJ of heat is released
amount of NH3 solidifies = 5.57/5.66 = 0.984 moles 

<span>molar mass of NH3 = 17 g/mole </span>
<span>1 mole of NH3 = 17 g </span>
So, 0.984 moles of NH3 = 17 X 0.984 = 16.728 g
7 0
3 years ago
What does the rate of a reaction determine?
mafiozo [28]

Answer:

Reaction Rate is the measure of the change in concentration of the disappearance of reactants or the change in concentration of the appearance of products per unit time

6 0
3 years ago
I'll be so thankful if u helped me &lt;&lt;33
qwelly [4]

Answer: its B , B is the answer.

Explanation:

6 0
3 years ago
Read 2 more answers
About 95-98 percent of alcohol is oxidized to what two substances
Sunny_sXe [5.5K]

Answer:

D. Water and Carbondioxide

Explanation:

Combustion of organic compounds in the presence of excess Oxygen will liberate carbondioxide (CO2) and water vapour (H2O). This is an exothermic reaction because heat is liberated to the surroundings.

CnH2n+1OH(aq) + (3/2*n)O2(g) --> nCO2(g) + (n + 1)H2O(g)

Addition of Oxygen can also be termed as a redox reaction. In this case, alcohols are oxidised while the Oxygen is reduced.

Example, (propanol)

C3H7OH(aq) + 9/2O2(g) --> 3CO2(g) + 4H2O(g)

5 0
3 years ago
Help a #QUEEN out PLSSSS!!!
spayn [35]
Co2 and Fe are the products the other two are reactants.
5 0
3 years ago
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