What does two bonded flurione atoms form?

Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.

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.

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.