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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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How many mg of salt are in a 2.78 kg bag of salt?
igomit [66]

Answer:

2,780,000mg

Explanation:

Using the Metric Staircase photo provided, you can calculate how many mg there are in 2.78 kg by simply moving the decimal point six places to the right, since the "Kilo" step takes six places to move to the "Milli" step.

2.78 kg

---------------

2 7 8 0 0 0 0 .

we can see that the decimal point is moved to the right six places.

Answer:

2,780,000mg

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