Answer:
B. To change from a liquid state to a solid state is called Freezing
Answer:
38.9 grams of ![BaCl_2](https://tex.z-dn.net/?f=BaCl_2)
Explanation:
0.187 mol BaCl2 x ![\frac{208 g}{1 mol}](https://tex.z-dn.net/?f=%5Cfrac%7B208%20g%7D%7B1%20mol%7D)
0.187 m x 208 g/m
0.187 x 208 g
38.896 g --> 38.9 g BaCl2
<span>AX(aq)+BY(aq)→no precipitate
AX(aq)+BZ(aq)→precipitate
this two equations imply
</span>
AX(aq) is soluble and <span>BY(aq) is insoluble
the answer is
</span><span>E. BY</span>
The person is called a wildlife biologist.