Tính khối lượng muối tinh thể CuSO4.5H2O (M=249,68, p=99%) cần thiết để pha 1 lít dung dịch chuẩn Cu2+ 1000 ppm.

Select the correct answer. when carbon dioxide dissolves in water, it sometimes reacts with water to form carbonic acid as in this balanced equation: co2 + h2o → h2co3. if 495 milliliters of carbon dioxide at 25°c and 101.3 kilopascals reacts with excess water, what is the theoretical yield of carbonic acid? use the periodic table and the ideal gas resource a. 0.889 g b. 1.10g c. 1.27g d. 2.02g what's the answer! quick!

What if it is did darwin used to support his theory of evolution

What is produced from neutralization of an acid and a base? a. hydronium ions b. citric acid c. salt and water