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finlep [7]
4 years ago
15

Which of the following is an endothermic reaction

Chemistry
2 answers:
OLga [1]4 years ago
8 0
D is your answer. :)
pashok25 [27]4 years ago
7 0
The answer is D an explosion 

An endothermic reaction is a chemical that is caused by heat and light.
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2 years ago
The reaction 2 a → b c has a kc of 0.2. the reaction is commenced with initial concentrations [a] = 0.2 m, [b] = 0.2 m and [c] =
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Protons and neutrons exist within the neucleus, while electrons do not.
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4 years ago
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masya89 [10]
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3 0
3 years ago
NaCl has a mc020-1.jpgHfus = 30.2 kJ/mol. What is the mass of a sample of NaCl that needs 732.6 kJ of heat to melt completely?
lilavasa [31]

Answer: The mass of the sample will be 1417.7 grams.

Explanation:

We are given:

\Delta H_{fusion}=30.2kJ/mol

This means that 1 mole of NaCl has an enthalpy of fusion of 30.2 kJ

1 mole of NaCl has a mass of 58.44 grams.

So, 30.2 kJ of heat is require for a mass 58.44 grams of NaCl

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Hence, the mass of NaCl sample will be 1417.7 grams.

5 0
4 years ago
Read 2 more answers
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