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Lena [83]
3 years ago
10

What is the term for the amount of energy that is needed for a chemical reaction to occur?

Chemistry
1 answer:
cupoosta [38]3 years ago
3 0
<span>This would be the activation energy. This is usually in the form of heat, which allows the reaction to undergo some sort of transition. Many times, enzymes can be used as catalysts to lower the activation energy required for the reaction to take place.</span>
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Consider the potassium permanganate reaction again.
Rus_ich [418]
Hey there !

Mole ratio :

<span>2 KMnO4 + 16 HCl → 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2

2 moles KMnO4 ----------------- 8 moles H2O
3.45 moles KMnO4 ------------- (moles H2O )

Moles H2O = 3.45 * 8 / 2

Moles H2O = 27.6 / 2

 = 13.8 moles of H2O

</span>The option that was given is wrong , <span>You're right.</span>
6 0
3 years ago
Read 2 more answers
If you have 6.25g of O2, how many moles of H2O are produced?
denis23 [38]

Answer:

0.4 moles of water produced by 6.25 g of oxygen.

Explanation:

Given data:

Mass of oxygen = 6.25 g

Moles of water produced = ?

Solution:

Chemical equation;

2H₂ + O₂  → 2H₂O

Number of moles of oxygen:

Number of moles = mass/ molar mass

Number of moles = 6.35 g/ 32 g/mol

Number of moles = 0.2 mol

Now we will compare the moles of oxygen with water:

                    O₂          :          H₂O

                     1            :            2

                   0.2          :        2×0.2 = 0.4 mol

0.4 moles of water produced by 6.25 g of oxygen.

8 0
3 years ago
Match the chemical reactions with their properties.
scoray [572]

Explanation:

where are the chemical reactions and their properties to match ?????????

5 0
2 years ago
Define weak force and strong force pls need it thanks so much :) :)
Semmy [17]
In particles physics, the weak interaction (the weak force or weak nuclear force) is one of the four known fundamentals interactions of nature, alongside the strong interaction, electromagnetism, and gravitation.
 
 This is based on my research, hope it helped :) <span />
6 0
3 years ago
9.00 g/h to kilograms per minute
Mkey [24]
9.00g/1hr * 1kg/100g * 1hr/60min = 0.00015kg/min or 1.5 * 10^-4kg/min.
4 0
3 years ago
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