D- If there is a color change that is indicative to that being a chemical change.
A, B, and C are examples of physical changes.
Answer:
B
Explanation:
I took the test and GOT an A
Answer:
6 sig figs
Explanation:
sig figs are numbers that are more than 0, but in this case, after the decimal, the 0's at the end count as sig figs as well
Answer: 3.57M
Explanation:Please see attachment for explanation
There are 14 atoms, the 2 at the front times' everything by 2, so there 4Ks, 2Ss and 8Os, altogether 14
