While participating in a blood drive at school, keona learns that blood has a density of 1.06 g/ml. she donates one pint of blood, which is equal to 473.176 ml. what is the mass of the blood keona donates to the nearest hundredth of a gram? the mass of the blood keona donates is

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?

Which factor is likely to impact the possible number of compounds ?

There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .