Select the correct answer from each drop-down menu. much of the mass of an atom is concentrated in its nucleus. the nucleus contains a - neutrons and electrons b - protons and electrons c - protons and neutrons and the outer part of the atom contains a - electrons b - neutrons c - protons

Aroller coaster car is traveling down a track at 22 m/s. the car has a mass of 2000 kg. what is the kinetic energy of the car? a) 22,000 j b) 968,000 j c) 484,000 j d) 44,000 j

In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.

What is the molar mass of ca(cio4)2