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Wewaii [24]
3 years ago
12

Need help figuring out these questions did I do them right

Chemistry
1 answer:
Bas_tet [7]3 years ago
8 0

Answer:

The answer to your question is: more less

Explanation:

I suggest you these answers:

a)     PCl₅ (s)     ⇒    PCl₃ (s)  + Cl₂ (g)

b)  ZnBr₂ (aq) + Li₃CO₃ (aq)  ⇒  ZnCO₃ (s)  + LiBr (aq)

c) C₂H₄  + O₂   ⇒    CO₂ (g) + H₂O (l)

Do you have to balance them?

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6 0
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For a first-order reaction, A → B, the rate coefficient was found to be 3.4 × 10-4 s-1 at 23 °C. After 5.0 h, the concentration
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Answer:

the original concentration of A = 0.0817092  M

Explanation:

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2.657=   log \dfrac{a}{0.00018}

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a = 0.0817092  M

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