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Ghella [55]
3 years ago
7

What is the name of the element with the atomic number 79

Chemistry
1 answer:
natima [27]3 years ago
6 0
Look it up, it’s not that hard.
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Which of these is a base? a-vinegar b-ammonia c-HCl d- HNO3
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Draw a mechanism for the reaction of water with formic acid. In the box to the left, draw any necessary curved arrows. Show the
dsp73

Answer:

See explanation

Explanation:

When water reacts with formic acid, The following equilibrium is set up;

HCOOH(aq) + H20(l) ⇄ HCOO-(aq) + H30+(aq)

This is because, the water abstracts a proton from formic acid to form its conjugate base, formate ion.

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5 0
3 years ago
Cecil writes the equation for the reaction of hydrogen and oxygen below.
Wittaler [7]

Answer:

C) to show that atoms are conserved in chemical reactions

Explanation:

When writing a chemical reaction, we should always consider the Mass Conservation Law, which basically states that; in an isolated system; the total mass should remain constant, this is, the total mass of the reactives should be equal to the total mass of the products

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2H₂ + O₂ → 2H₂O

So, we can check the above statement:

For reactives (left side):

4H

2O

For product (right side):

4H

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3 years ago
why do we heat the test tube in a glass beaker during a chemistry experiment and not directly over a flame?
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It is not directly over a flame because it depends on the substance you might not want to heat it too much.you never know what could happen
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A chemist dissolved crystals of an unknown substance into water at room temperature. He found that 33 g of the substance can be
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