which pair of elements would most likely form a covalent bond?\nsodium and chlorine\niron and…

which pair of elements would most likely form a covalent bond?\nsodium and chlorine\niron and sulfur\ncalcium and bromine\nhydrogen and oxygen\nquestion 12 (1 point)\nlisten\nin a chemical reaction, what are the starting substances called?\nreactants\nproducts\nmolecules\natoms
Answer
Brief Explanations:
Covalent bonds form between non - metals by sharing electrons. Hydrogen and oxygen are both non - metals. In a chemical reaction, starting substances are reactants.
Answer:
For the first question: Hydrogen and oxygen For the second question: Reactants