What three characteristics of matter does chemistry deal with

What can account for the increased potential energy when atoms are close together? Question options: A. Their opposite charges B. Electron repulsion C. The breaking of a bond D. Proton to Proton Repulsion

If an atom has an atomic mass of 14 and has 6 protons, how many neutrons does the atom have?

How many grams of o2 are in a 5.0 mol of the oxygen gas?

At higher temperatures, A) reaction rates increase because reactants move faster, collide more often, and produce more collisions with the required energy of activation.

You fall off your skateboard and skin your knee so you wash it and put a bandage on it. Which seven systems are you using most during this activity? explain your answer

Calculate the empirical formula from the given percent compositions. 82% nitrogen (N), 18% hydrogen (H)

Atoms of different isotopes of the same element differ in their total number of electrons neutrons protons valence electrons

Which type of electromagnetic radiation has the longest wavelength? A) ultraviolet B) infrared C) X-ray D) visible

Pretend the coastal town of Galveston, TX has decided to install new wave generators on all its beaches to create energy for the entire island. What disadvantages might arise?

Using a balanced chemical reaction and a periodic table, which of the following is not possible to calculate?