What are the coefficients that would properly balance this equation? _Ca _H2O --> _Ca(OH)2 + _H2
+
0 2,1 --> 2,1
O >
1,2 --> 1,1
O 1,2 -> 2,4
O 1,2 -> 2,1

2points what is the job of a scientist? a. to answer ethical questions. b. to write laws based on his or her knowledge. c. to ask and answer scientific questions. d. to ignore facts that do not support his or her theory.

How do scientists think that gravity affected the formation of our solar system?

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains