Abeaker contains 30 milliliters acetone that boils at 56 °c. what is the boiling point of half of this acetone? half of 56 °c since boiling point is an extensive property half of 56 °c since boiling point is an intensive property 56 °c since boiling point is an extensive property 56 °c since boiling point is an intensive property

Explain how the integumentary system plays a crucial role in the ability to maintain homeoestasis

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.)

Areaction is first order with respect to reactant x and second order with respect to reactant y. which statement describes the rate law for this reaction?