A gas takes up a volume of 53.0 ml, has a pressure of 1.8 atm, and a temperature of 23 degrees C. If I raise the temperature to 35 degrees C and lower the pressure to 1.5 atm, what is the new volume of gas?

How have the greenhouse gasses increased from the year 2000 to 2018

Based on its chemical properties, identify the position of each chemical family on the periodic table.

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.)