Determine the amount of Sc atoms in a 4.78 g sample of pure Sc

For each of the following types of reactions, write a general reaction formula in the symbolic form—for example, a + b → ab. single-displacement double-displacement synthesis decomposition

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true