Calculate the percent composition for each of the following compounds: A potassium bromide, KBr
B. Acetone, C3H6O

An engineer decides to use a slightly weaker material rather than a stronger material, since she knows that the stronger material can break suddenly. this is an example of what? a choosing a material that will show warning before it fails b using composite materials that combine strength c using a material for multiple applications d using design techniques that increase efficiency and reduce cost

Asap a 50.0 ml soap bubble is blown in a 27.0°c room. it drifts out an open window and lands in a snow bank at -3.0°c. what is its new volume?

When carbon disulfide is formed from its elements, heat is absorbed. calculate the amount of heat in (kj) absorbed when 5.66g of carbon disulfide is formed