Calculate the density of the present. Remember D = M/V.* 6 cm
MASS
120 g
4 cm
5 cm

Which of these would be caused by a chemical change? a) the formation of lava. b) sedimantary rock layering over time. c) metamorphic rock forming from igneous. d) metamorphic rock eroding to form sedimentary rock.

Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?

8) warming your hands by a fire is an example if which heat transfer? a. conduction b. convection c. radiation d. none of these