Author Question: Which chemical family is composed almost entirely of synthetic elements? A) the actinides B) the ... (Read 76 times)

Awilson837 · **on:** Aug 27, 2018

Which chemical family is composed almost entirely of synthetic elements?

A) the actinides
B) the lanthanides
C) the halogens
D) all of the above
E) none of the above

Question 2

What do you expect the pH of a soil sample to be if the geology in the area was composed of a large amount of calcium carbonate (CaCO3)?

A) low pH
B) high pH
C) negative pH
D) neutral pH
E) Calcium carbonate has no effect on pH.