cho 7,35g hỗn hợp gồm hai kim loại kiềm A và kali tác dụng với nước để trung hòa dung dịch thu được cần 0,25 mol HCl vậy A là

Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull

What is the approximate vapor pressure when the gas condenses at 70 degrees celsius

Anyone who's in connections academy chemistry b have the factors that affect the rate of a reaction portfolio already done?