The quantity of heat required to change the temperature of 1 g of a substance by 1 c is defined as

Needthe meter is the standard unit for: 1) height 2) length 3) weight 4) mass

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.