Question

3. Elements: combine to from compounds::
compounds:_​

Answer 1

Explanation:

According to definition of compounds, two or more elements combine together chemical to form a new substance called compound. Compounds are commonly termed as chemical compounds.

Answer 2

Answer:

Elements combine to form chemical compounds that are often divided into two categories. Metals often react with nonmetals to form ionic compounds. These compounds are composed of positive and negative ions formed by adding or subtracting electrons from neutral atoms and molecules.