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choli [55]
2 years ago
12

Describe what happens in a chemical reaction and how it is balanced.

Chemistry
1 answer:
guajiro [1.7K]2 years ago
4 0
Okay okay so so I can just get my hair done before you leave lol I’ll let you know when we are ready to get rueit ready for bed thanks love you bye
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PLEASE HELPPPPP!!!!!!!
marin [14]
Boiling water is a physical change, because it is changing state of matter, there is a controllable temperature change, and you can change it back.

Frying the egg white is a chemical change, because there is a change of matter, controllable temperature change, but you CAN'T change it back.
8 0
3 years ago
How many moles of H2O2 are needed to react with 1.07 moles of N2H4?
I am Lyosha [343]

Answer:

2.14 moles of H₂O₂ are required

Explanation:

Given data:

Number of moles of H₂O₂ required = ?

Number of moles of N₂H₄ available = 1.07 mol

Solution:

Chemical equation:

N₂H₄  +   2H₂O₂       →   N₂ +  4H₂O

now we will compare the moles of H₂O₂ and N₂H₄

                          N₂H₄     :      H₂O₂  

                            1           :        2

                            1.07      :         2×1.07 = 2.14 mol

                   

6 0
3 years ago
20 POINTS!!!!
Ksju [112]
I think A. is the answer
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3 years ago
Enzymes are proteins that speed up chemical reactions in the body. How do they work?
KATRIN_1 [288]
They work by lowering the activation energy
3 0
3 years ago
Which of the following pairs of elements is most likely to form an ionic bond?
balu736 [363]

A pair of elements will most likely form an ionic bond if one is a metal and one is a nonmetal. These types of ionic compounds are composed of monatomic cations and anions. ( K, Cl)...

4 0
2 years ago
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