The concentration of carbon monoxide in an urban apartment is 48 ug/m^3. What mass of carbon monoxide in grams is present in a room measuring 10.0x10.5x20.5 ft?

Sugar is dissolved in water. which is the solute? sugar neither both water

When the speed of the bottle is 2 m/s, the average maximum height of the beanbag is m.

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.)