If 20.0 g of magnesium react with excess hydrochloric acid, how many grams of magnesium chloride are produced? Mg + HCl  ___MgCl2 + H2

The pressure inside a hydrogen-filled container was 2.10 atm at 21 ? c. what would the pressure be if the container was heated to 92 ? c ?

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

The yearly amounts of carbon emissions from cars in belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 5.8 gigagrams per year. find the probability that the amount of carbon emissions from cars in belgium for a randomly selected year are between 11.5 gigagrams and 14.0 gigagrams per year. a. 0.340 b. 0.660 c. 0.167 d. 0.397