How many molecules are in each sample, express your answer to four significant figures 85.22g CCl4 =
77.51 kg NaHCO3=
127.62 g C4H10=
4.68 x 10(4) g Na3PO4

How does the principle of electromagnetism explain the interaction between earth’s magnetic field and the solar wind?

Stage in which a star’s outer layers have started to cool and grow outward?

The equation below shows the reaction of zinc with hydrochloric acid (hcl). zn (s) + 2 hcl (aq) —> zncl2 (aq) + h2 (g) what will happen if the concentration of hcl is decreased? a. more zncl2 will be produced. b. the reaction rate will slow down. c. the hydrochloric acid will become more acidic. d. the reaction will produce water instead of hydrogen gas.