Dilute hydrochloric acid used in the school laboratories usually has a concentration of 2.Omol dm-3. Calculate
the mass of hydrogen chloride that found in 250 cm3 of
the hydrochloric acid?[ Ar H.1; C1,35.5]​

Hydrogen is the most abundant element on the periodic table..hope it .

Olá. porque a reação na temperatura é muito rapida a do copo : )

Ithe undersigned only for use your own email and delete any and copies and of the itself and to be there is a good timewhat does a decrease in temperature indicate about the molecules in a sample of liquid water? decreased chemical energy of the moleculesdecreased kinetic energy of the moleculesincreased chemical energy of the moleculesincreased kinetic energy of the moleculeshow does a sample of helium at 15 â°c compare to a sample of helium at 215 k? the helium at 15 â°c has a higher average kinetic energy than the sample at 215 k.the helium at 15 â°c has lower nuclear energy than the sample at 215 k.the helium at 15 â°c has slower-moving atoms than the sample at 215 k.the helium at 15 â°c has smaller atoms than the sample at 215 k.