Tính ph và xác định môi trường các dung dịch a) (H+)=0,001M
b) (h+)=0,00001M
c) (oh-)=0,01M
d) (oh-)=10^-7M

21. consider the following chemical reaction: n2+ o2 2 no if 10.0 g of n2 reacts with excess oxygen then how many grams of no can be formed? a) 10.7 g b) 21.4 g c) 32.9 g d) 42.8 g page 4 of 8

In a copper wire, a temperature increase is the result of which of the following

Reactions in cells take place at about a. 40°c b. 0° c. 100°c d. 60°c