It took jackie two hours to mow the lawn. two weeks later it took her one and one-half hours to mow the lawn. what can be said about the amount of power used by jackie the second time she mowed the lawn?

What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

Which statement best describes the function of enzymes?