Answer:
B.bonds are broken and new bonds are formed
Because people make those substance out of other things
Accurate data means the data experimentally obtained are close to the true value. Precise data means the data obtained are close to one another. In this case, the data are close to the true value which is 1.2 and the data are relatively close to one another. Hence the set is both accurate and precise.
<span>(15.0 g) / (150.0 g) x (100 g) = 10.0 g/100 g H2O </span>