Achemist needs to find out how large of a container would be required to contain the products of an ammonia decomposition. if 8.91 mol h2 are produced during the reaction, how many moles of n2 are produced? 2.97 mol n2 26.7 mol n2 8.91 mol n2

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration?

Which best explains why an iceberg floats?

Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)