Why is it that i always help people wit they work but they wont give me not one single right answer on mines; Stop puttin links on my questions. Aint nobody Got time for that How much does 4.2 moles of Ca(NO3)2 weigh?

What problem would a person have if the nucleic acid in one of his or her cells were damaged?

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?

Two people each hold the end of a rope and create waves by moving their arms up and down. this wave is best classified as a transverse wave because a) both the rope particles and the wave are moving in the same direction. b) the wave is moving up and down as the particles of the rope move horizontally. c) the wave is moving horizontally as the particles of the rope move up and down. eliminate d) the wave is moving in a parallel direction with the motion of the person's arms.