Chemistry, 25.09.2020 14:01, ellycleland16
It was observed that heat is evolved when 25g of sodium hydroxide is dissolved in 100 mL of pure
water. Do you think there will be any change in mass of the solution? Find the mass percentage of
the solution?
Answers: 3
Chemistry, 21.06.2019 22:20, Brooke7644
Calcium hydride (cah2) reacts with water to form hydrogen gas: cah2(s) + 2h2o(l) → ca(oh)2(aq) + 2h2(g) how many grams of cah2 are needed to generate 45.0 l of h2 gas at a pressure of 0.995 atm and a temperature of 32 °c?
Answers: 2
Chemistry, 22.06.2019 05:20, barry14201
Identify and describe the three ways that mutations affect organisms.
Answers: 1
It was observed that heat is evolved when 25g of sodium hydroxide is dissolved in 100 mL of pure
wa...