Để hòa tan hết 4g oxit kim loại có hóa trị không đổi cần vừa đủ 25g dung dịch HCL 29,2 % CTHH của oxit là

The enthalpy of formation of water is -285.8 kj/mol. what can be inferred from this statement?

A1.5l container holds p.50 grams of an unknown gas at a pressure of 0.44 atm and a temperature of 50.c what is the molar mass of the unknown gas

The rate constant for the reaction below is 6.2 x 10−5 mol l−1 s −1. if the initial concentration of a is 0.0500 m, what is its concentration after 115 s?