Describe at least 10 things you did this week to be part of the solution. Describe the areas you see you need to improve in. These entries should be detailed. Do not just write "recycled", explain what you recycled, why you recycled it, how you made it easy to continue to recycle, etc.

How many grams of n2h4 will be consumed by 23 g of n2o4

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.)

Which substance is a steroid? cholesterol fatty acid monosaccharide trans fat