Which is a compound?

A. Kr

B. O2

C. Cl2

D. CuF2

Which statement about velocity is true? A. It has only magnitude. B. It has only direction. C. It has magnitude and direction. D. It is a scalar quantity.

Determine the number of hydrogen atoms in the following compound 3Cu (C2H3O2) 2

Which would have the highest viscosity A. Shampoo B. Water C. Orange juice

Lithium has 2 stable isotopes Li-6 and Li-7. One of them has an abundance of 92.5% and the other has an abundance of 7.5%. Knowing the atomic mass of lithium is 6.941, which is the more abundant isotope?

True or False: the force of attraction that holds two atoms together is called a chemical bond

How to get 1m solution to 0.001m solution?

If something is in high resolution you can see and object but not very clearly. True or False.

Which change might cause a cold spell in the northern united states

Kipps appratus is for what?

Which of the following statements about protons are true? Protons have twice the mass of neutrons. Protons have the same magnitude of charge as electrons but are opposite in sign. Protons have a charge of 1+.