Question

Please ans 2 question​

Answer 1

Answer:

1) the smallest unit into which a substance can be divided without changing its chemical nature.

2) A molecule is defined as two or more atoms of the same element different element that are bound together. A molecule may be homonuclear, which means, it consists of atoms of one chemical element, as with oxygen (O2); or it may be heteronuclear, a chemical compound composed of more than one element, as with water (H2O).