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DanielleElmas [232]
3 years ago
9

Does anyone know how to do number 15?

Chemistry
1 answer:
vovikov84 [41]3 years ago
6 0

Answer:

yes i do 980

Explanation:

i899 1/2

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Which element has the same number of energy levels as aluminum (Al) and the same number of valence electrons as calcium (Ca)
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Answer:

magnesium (Mg)

Explanation:

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3 years ago
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Helpppppppppppppppppppppppppppp
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evaporation or water runoff that's my tips

rain or thunder storm

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What's meant by the term enantiotropy?​
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Net ionic of ammonium sulfide added to iron (ll) chloride
meriva

Answer:

Fe²⁺(aq) + S²⁻(aq )⟶ FeS(s)  

Step-by-step explanation:

Molecular Equation:

(NH₄)₂S(aq) + FeCl₂(aq) ⟶ 2NH₄Cl(aq) + FeS(s)

Ionic equation :

2NH₄⁺(aq) + S²⁻(aq) + Fe²⁺(aq) + 2Cl⁻(aq) ⟶ 2NH₄⁺(aq) + 2Cl⁻(aq) + FeS(s)

Net ionic equation :

Cancel all ions that appear on both sides of the reaction arrow (underlined).

<u>2NH₄⁺(aq)</u> + S²⁻(aq) + Fe²⁺(aq) + <u>2Cl⁻(aq)</u> ⟶ <u>2NH₄⁺(aq) </u>+ 2<u>Cl⁻(aq) </u>+ FeS(s)

Fe²⁺(aq) + S²⁻(aq )⟶ FeS(s)

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3 years ago
If the temperature we're to go down how would that effect the solubility of each solute
vova2212 [387]

well when there is more kinetic energy in a solution the higher its temperature is going to be so the more the molecules are able to be help together, the lower the temperature the more difficult it would be to break the molecule apart in order to bond with it.

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