Answer:
C. Yes, because they have a definite composition.
Explanation:
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C. A solution is any two liquids mixed.<span />
Answer:
Explanation:
Thermal stability is the tendency to not break down when exposed to heat. A more negative enthalpy of formation will correlate with more stable products. Therefore, the more negative the enthalpy of formation is for a substance, the greater its thermal stability.
Hope it helps you!
Answer:
Explanation:
Deal with 1 mole first.
The chemical formula of Magnesium Phosphate is
Mg3(PO4)2
The 2 tells you that there are 2 mols of Phosphorus in the chemical.
1 mol of anything is 6.02 * 10^23 (in this case) atoms.
2 mols of anything is 12.04 * 10^23 atoms
2 moles of anything is 1.204 * 10^24 (the 2 answers are the same. This one is more correct in scientific notation.)
Now we come to the 5.01. Where does that go?
5.01 * Mg3(PO4)2
So multiply 1.204 * 10^24 by 5.01 When you do, you get
7.26 * 10^24 atoms