How many Joules of heat are needed to raise the temperature of 250. g of water from 20.5oC to 100.0oC if it takes 4.184J to raise the temperature of exactly 1 gram of water exactly 1 Celsius degree (4.184 J/(goC) is water's specific heat). (HINT: Begin with the quantity that has the unit you want and use to other quantities to cancel out unwanted units.)

Each of the following reactions is allowed to come to equilibrium and then the volume is changed as indicated. predict the effect (shift right, shift left, or no effect) of the indicated volume change. drag the appropriate items to their respective bins.co(g) + h2o(g) < => co2(g) + h2(g) (volume is decreased) pcl3(g) + cl2(g) < => pcl5(g) (volume is increased) caco3(s)< => cao(s) + co2(g) (volume is increased)