How many calories are absorbed by a copper spoon with a mass of 200 grams as it changes from 28°C to 33°C? a) 0.00027
b) 3
c) 90
d) 13,000

Apump contains 0.5 l of air at 203 kpa.you draw back on the piston of the pump, expanding the volume until the pressure reads 50.8 kpa. what is the new volume of the air pump

A5.000 g sample of niso4 h2o decomposed to give 2.755 g of anhydrous niso4. what is the formula of the hydrate? what is the full chemical name for the hydrate? what is the molar mass of the hydrate? niso4•_h2o what is the mass % of water in the hydrate?

Determine type of reaction & predict the product c3h12+o2 =