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Korolek [52]
3 years ago
7

Magnesium metal put into acid? Physical or chemical change

Chemistry
2 answers:
e-lub [12.9K]3 years ago
4 0
Physical. The Magnesium is physically put into acid.
Angelina_Jolie [31]3 years ago
4 0
The answer is Physical Change. Magnesium metal put into acid it is called physical change. Physical Change is a substance it does not have a change, or arrangement of molecules it also be change. Hope it helped you!
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Write the structure of the following compound:<br>=&gt; 3-(4-chlorophenyl)-2-methylpropane
Rudiy27

Answer:

See explanation and image attached

Explanation:

The IUPAC system of nomenclature enables the structure of molecules to be written seamlessly from the name of the compound. Hence it is commonly called the systematic nomenclature.

The parent chain here is propane. It is substituted at the 2- position by a methyl group and at the 3-position by 4-chlorophenyl group as we can see in the image attached to this answer.

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In 1860, Chemists could make which of the following statements about the known chemical elements?
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5 0
3 years ago
The leaves of the rhubarb plant contain high concentrations of diprotic oxalic acid (hooccooh) and must be removed before the st
Andrei [34K]
First we have to find Ka1 and Ka2
pKa1 = - log Ka1 so Ka1 = 0.059
pKa2 = - log Ka2  so Ka2 = 6.46 x 10⁻⁵
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Oxalic acid is H₂C₂O₄
H₂C₂O₄      ⇄     H⁺   + HC₂O₄⁻
0.0356 M            0          0
0.0356 - x            x          x
Ka1 = \frac{[H^+][HC2O4^-]}{[H2C2O4]} = x² / 0.0356 - x
x = 0.025 M
pH = - log [H⁺] = - log (0.025) = 1.6
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2 years ago
How many atoms are there in:
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B is the right answer "right"
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2 years ago
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