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topjm [15]
3 years ago
10

Chemistry answer please the above​

Chemistry
1 answer:
noname [10]3 years ago
3 0

Explanation:

a)

When Sodium carbonate Decahydrate is exposed to air then it loses its water of crystallisation then white powder is produced.

b)

Efflorescence.

c)

Reaction:

Na₂CO₃•10H₂O → Na₂CO₃ + 10H₂O

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diamong [38]

Answer:

Explanation:

Metal elements form positively charged ions called cations because they are located on the left side of the periodic table These elements all have valence electrons in an s orbital. These electrons are relatively easy for the atom to lose to achieve a stable octet of electrons in its outermost energy shell.

8 0
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3. Ammonia, NH3, is a typical ingredient in household cleaners. It is produced through a combination reaction involving N2(g) an
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N2 + 3H2 ----> 2NH3 

<span>you can see 3 moles H2 reacts to form 2 moles NH3 </span>
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6 0
3 years ago
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Murrr4er [49]

Answer: hope this helps

To make molar NaCl solutions of other concentrations dilute the mass of salt to 1000ml of solution as follows:

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Explanation:

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ss7ja [257]

Answer:

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Explanation:

6 0
3 years ago
If you have a 4.0 g of radioactive substance left after 4 half-lives have passed then how much did you have originally?
kirza4 [7]

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