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Musya8 [376]
3 years ago
12

The process by which water vapor changes to liquid water is called

Chemistry
2 answers:
Vaselesa [24]3 years ago
8 0
Your answer is C.........
Vlada [557]3 years ago
5 0
c. condensation is your answer.
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After an afternoon party, a small cooler full of ice is dumped onto the hot ground and melts. If the cooler contained 6.60 kg of
gtnhenbr [62]

Answer:

The quantity of heat required to melt all the ice at 0°C is 2.21 * 10⁶ J

Explanation:

Latent heat of fusion  is the heat absorbed by a unit mass of a given solid at its melting point that completely converts the solid to a liquid at the same temperature. Its unit is Joules/kg or Joules/g.

1 calorie = 4.184 Joules

Therefore , 80.0 cal/g = 80.0 cal/g * 4.184 J/cal = 334.72 J/g

1 g = 0.001 kg; Heat of fusion in J/kg = 334.72 J/g * 1g /0.001 kg = 3.35 * 10⁵ J/kg

Quantity of heat, Q = mass * latent heat of fusion of ice

quantity of heat required = 6.60 kg * 3.35 * 10⁵ J/kg

Quantity of heat required = 2.21 * 10⁶ J

Therefore, the quantity of heat required to melt all the ice at 0°C is 2.21 * 10⁶ J

5 0
3 years ago
Help me please
vredina [299]

Answer:

an atom is the smallest unit of matter or a substance.

Explanation:

the structure of the

atom consists of electrons, protons, neutrons) which makes up the nucleus is more than a hundred thousand times smaller than it's atom but makes up 99.9% of the mass of the atom.

the protons are the positively charged particles. The neutrons are the negatively charged particles. The electrons are the negatively charged particles.

the first energy level consists of two electrons. the second energy level consists of eight electrons. the 3 energy level consists of eighteen electrons. the 4 energy level consists of thirty two electrons.

8 0
3 years ago
An unknown compound contains only carbon, hydrogen, and oxygen (). Combustion of 7.50 of this compound produced 11.0 of carbon d
Sergeu [11.5K]
<span>Firstly, we know that M= m/n,  the main formula which shows the relationship between m, n, and M. The nknown compound contains only carbon, hydrogen, and oxygen, so we can get n(C)=m/M,  from M(C)= m(C)/n (C),  besides the stoechiometric equality, we have </span>

n( C)= m(C)/M(C ) = m(CO2)/ M(CO2)=11/44, because m(CO2)=11.0,  M(CO2)=44.01

so n(C )= 0.24moles,




5 0
4 years ago
What is the 4 methods that can be used to separate mixtures?
SCORPION-xisa [38]
<span>Separating mixtures can be done in many ways. One of these methods is the physical methods which include, filtration, crystallization, distillation, and chromatography. 

Since mixtures come in a lot of forms and many phases, some of them cannot be separated through the first physical methods. The methods of separating mixtures depend on the kind of mixture.  Other common separation methods include fractional distillation which is similar to simple distillation method, magnetism, which is ideal for  mixtures whose one part has magnetic properties and separating funnel, an ideal technique used to separate immiscible liquids..</span>


3 0
3 years ago
2. Which test for iron(II) ions is conclusive ​
krok68 [10]

Answer:

please brainlist answer

Explanation:

The addition of K 3 Fe(CN) 6 to a solution causes the formation of a deep blue precipitate which indicates that iron(II) ions are present.

5 0
3 years ago
Read 2 more answers
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