11. The mass (in grams) of FeSO4.7H2O required for preparation of 125 mL of 0.90 M solution is:
(a) 16 g
(b) 25 g
(c) 13 g
(d) 31 g
(e) 43 g

An object displaces 652 ml of water. the volume of the object is: 0.652 cm³ 6.52 cm³ 65.2 cm³ 652 cm³

Which is an example of a reversible physical change?

The reaction below shows a system in equilibrium. how would a decrease in temperature affect this reaction? a. the rate of formation of the gases would increase. b. the equilibrium of the reaction would shift to the left. c. the equilibrium would shift to cause the gases to sublime into solids. d. the chemicals on the left would quickly form the chemical on the right.