If two atoms have different atomic number. Are they the same element or an isotope?

A 1.5L intraveneous (IV) solution contains 919 grams glucose (C6H12O6). What is the molarity of this solution?

The rate of sulfur formation in the reaction of sodium thiosulphate with nitric acid: a. Does not change with increasing concentration of sodium thiosulfate b. Increases with increasing concentration of sodium thiosulfate c.

What is the atomic # for lithium-7

What happens to the rate if the concentration is tripled

A 67.2 g sample of a gold and palladium alloy contains 2.49 * 1023 atoms. what is the composition (by mass) of the alloy?

Are energy levels and orbitals the same thing?

Heating devices can be made by passing an electric current through a conductor of: high resistance low resistance high conductivity low conductivity

What is the element 3O2 name

Why sulphur used for food preservation?

How would a solution that is labeled 5.0 molar be similar to one labeled 5.0 molal?