Which statement involving Hess's Law is false? If you reverse the reaction, you must also reverse the sign of the heat of reaction
If you multiply the equation by 2, you must divide the heat of reaction by 2
Identical compounds found on the same side of the reaction will be added
Identical compounds found on opposite sides of the reaction will be canceled or subtracted.

Asyringe contains 56.05 ml of gas at 315.1 k. what volume will that gas occupy if the temperature is increased to 380.5 k? a) 12.41 b) 46.42 c) 67.68 d) 81.74

Tooth enamel consists mainly of the mineral calcium hydroxyapatite, ca_10(po_4)_6(oh)_2. trace elements in teeth of archaeological specimens provide anthropologist with clues about diet and diseases of ancient people. students at hamline university measured strontium in enamel from extracted wisdom teeth by atomic absorption spectroscopy. solutions with a constant total volume of 10.0 ml contained 0.726 mg of dissolved tooth enamel plus variable concentrations of added sr. added sr find the concentration of sr in the 10 ml sample solution in parts per billion = ng/ml. find the concentration of sr in tooth enamel in parts per million = mu g/g.

Aman applies a force of 500n to push a truck 100m down the street how much does he do?