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Yuliya22 [10]
2 years ago
9

Does the addition of a catalyst affect the ΔH of reaction?

Chemistry
1 answer:
Semenov [28]2 years ago
8 0

Answer:

no

Explanation:

because its just no lol.

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How much heat is required to melt 26.0 g of ice at its melting point?
MAXImum [283]

Answer:

Heat required to melt 26.0 g of ice at its melting point is 8.66 kJ.

Explanation:

Number of moles of water in 26 g of water: 26× \frac{1}{18.02} moles

                                                                      =1.44 moles

The enthalpy change for melting ice is called the entlaphy of fusion. Its value is 6.02 kj/mol.

we have relation as:

                                           q = n × ΔH

where:

q  = heat

n  = moles

Δ H  = enthalpy

So calculating we get,

                                        q= 1.44*6.02 kJ

                                        q= 8.66 kJ

We require 8.66 kJ of energy to melt 26g of ice.

                       

8 0
3 years ago
List 10 chemical reactions reactions that have benefited your life today. include the reason you think each was indeed a chemica
vagabundo [1.1K]

Answer:

your answer may be found on a website called "Thought.co"

once you get there just search "Examples of Chemical Reactions in Everyday Life" and it will give you some ideas  :)

7 0
2 years ago
Answer the question PLS 100 points!!!
cluponka [151]
  • 1atm=760mm Hg

Now

  • 1.36atm
  • 1.36(760)
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Done!

5 0
2 years ago
If a neutral atom has 10 proton how many electrons would it have?
olchik [2.2K]
It should have 10 electrons
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3 years ago
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Which process results in a chemical change?
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2) melting an iron bar
8 0
2 years ago
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