Air is a good insulator because .

air molecules are tightly packed together
air molecules are spaced far apart
it is easy for molecules to transfer heat to one another
air reflects heat back into space

The covalent compound acetylene, which is the fuel of the oxyacetylene torch used by welders, has the molecular formula c2h2. the covalent compound benzene, a commercial solvent, has the molecular formula c6h6 each of these covalent compounds contains carbon and hydrogen atoms in a one-to-one ratio. would it be correct to write the chemical formulas of each as ch? explain.

Why did southern business leaders want to increase the number of slaves

How many moles of al3+ ions are in 1.25 moles of al2o3