A substance with a specific heat of 5 J/g°C absorbs 25 Joules of energy and increases from 75°C to 125°C. What is the mass of this substance?
1.0 gram
O 0.01 gram
0.1 gram
O 10 grams

Seawater contains approximately 3.5%nacl by mass and has a density of 1.02 g/ml. what volume of seawater contains 7.5 g of sodium?

What volume of a 2.00 m stock solution of naoh is needed to prepare 150. ml of 0.40 m solution?

What kind of ion is contained in salts that produce an acidic solution? a positive ion that attracts a proton from water a positive ion that releases a proton to water a negative ion that attracts a proton from water a negative ion that releases a proton to water