Physical science help ( fast)

Aug 11th, 2015
Price: $5 USD

Question description

The idea that all living things are made up of cells is considered scientific law. This means the idea

Which coefficient is needed in front of NaNO3 to balance the equation Na2S + Zn(NO3)2 → ZnS + _NaNO3?

Which most likely indicates a chemical change has occurred?

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(Top Tutor) physicsguy
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