Answer:
Explanation:
You can identify an unknown substance by measuring its density and comparing your result to a list of known densities. Density = mass/volume. Assume that you have to identify an unknown metal.
Answer:
It is broken down into water and oxygen
Explanation:
2H2O2 -----> 2H2O +O2
The answer is heterogeneous because if a salad is mixed by the following item it will not mix properly and we could easily separate them.
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Answer:
He should use black a light purple brown, tan, blue, and just a tiny bit of pink!
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Explanation:
1 mole contains = 6.02x10^23 atoms. 0.31mole contains = 0.31x6.02x10^23 = 1.8662x10^23.
