Total these measurements. Your answer should indicate the proper accuracy. 28 L
42 L
6 L
931 L

Your answer should indicate the proper precision (correct number of insignificant figures).

1. 1,010 L
2. 1,007.0 L
3. 1,007 L
4. 1,000 L

Can someone me with questions 12 and 13 plz.

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

Rays from the sun are not considered matter true or false