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IRISSAK [1]
4 years ago
11

Snow from roof top melts as it drips from the roof and refreeze in icicles is this endothermic or exothermic

Chemistry
1 answer:
Sever21 [200]4 years ago
4 0

Answer:

Exothermic reaction

Explanation:

The phase change from liquid to solid by the freezing icicles is a typical exothermic reaction.

An exothermic process is one in which heat is lost to the surroundings.

To form the icicles, the dripping water must loose its heat to the environment. As the water cools below freezing point, the ice forms in form of the icicles observed.

Such reactions giving off heat is an exothermic reaction.

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element is the smallest particles which cannot be broken down.

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When BOTH organisms benefit from a relationship it is called?
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The answer is A mutualism
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HELP ASAP PLEASEEEEE!!!!! (serious answers only or i’ll report)
Sonbull [250]

Answer:

1st order

Explanation:

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OxYgen and hydrogen particles are kept in a container. Which of the following
Tema [17]

Answer:

Option D

Oxygen particles mix evenly with hydrogen particles.

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7 0
3 years ago
Upon combustion, a 0.8376 g sample of a compound containing only carbon, hydrogen, and oxygen produces 1.6003 gco2 and 0.9827 gh
Wewaii [24]
Answer is: empirical formula for compound is C₂H₆O.
m(CO₂) = 1,6003 g.
n(CO₂) = m(CO₂) ÷ M(CO₂).
n(CO₂) = 1,6003 g ÷ 44 g/mol.
n(CO₂) = 0,0364 mol.
n(CO₂) = n(C).
m(C) = 0,0364 mol · 12 g/mol = 0,4368 g.
m(H₂O) = 0,9827 g.
n(H₂O) = 0,9827 g ÷ 18 g/mol.
n(H₂O) = 0,0546 mol.
n(H) = 2 · n(H₂O) = 0,1092 mol.
m(H) = 0,1092 mol · 1 g/mol = 0,1092 g.
m(O) = 0,8376 g - 0,4368 g - 0,1092 g = 0,2916 g.
n(O) = 0,2916 g ÷ 16 g/mol = 0,0182 mol.
n(C) : n(H) : n(O) = 0,0364 mol : 0,1092 mol : 0,0182 mol.
n(C) : n(H) : n(O) = 2 : 6 : 1.
7 0
4 years ago
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