cân 0.6g KHS03 cho vào 500ml, nước cất, ta thu được dung dịch A. tính pH và đêm năng của dung dịch A. Biết Axit H2SO3 có hằng số phân ly Ka1=1,7.10-2, Ka2=10-7

What’s the scientific notation for the number 6,840,000,000

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true

Consider the following reaction at equilibrium: c(s)+h2o(g)⇌co(g)+h2(g) predict whether the reaction will shift left, shift right, or remain unchanged upon each of the following disturbances. a) c is added to the reaction mixture. b) h2ois condensed and removed from the reaction mixture c) co is added to the reaction mixture d) h2 is removed from the reaction mixture.