A researcher measures tensile strength of a steel sample as 45.2 lbs/in2. The actual strength is 53.7 lbs/in?. Calculate percent error. Round your answer to 2 decimal places
and don't forget the % sign!

An alkaline battery produces electrical energy according to the following equation. zn(s) + 2 mno2(s) + h2o(l) zn(oh)2(s) + mn2o3(s) (a) determine the limiting reactant if 17.5 g zn and 31.0 g mno2 are used. (type your answer using the format ch4 for ch4.) (b) determine the mass of zn(oh)2 produced. _ g

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.

How can one make a supersaturated solution? (apex)