The diagrams show four pieces of laboratory equipment. balance
pipette
stop-clock
thermometer
00:00:13.00
Which equipment is essential to find out if dissolving a salt in water is an exothermic process?

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

Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. a solution containing 3.50 g of sodium carbonate is mixed with one containing 5.00 g of silver nitrate. how many grams of sodium carbonate, silver nitrate, silver carbonate, and sodium nitrate are present after the reaction is complete?

Assuming complete dissociation of the solute, how many grams of kno3 must be added to 275 ml of water to produce a solution that freezes at -14.5 c? the freezing point for pure water is 0.0 c and k_f is equal to 1.86 c/m