What is the name of the compound O7I9

How will the emission of an alpha particle affect the atomic number of an atom

What is conserved in the reaction shown below? h2(g) + cl2 (g) --> 2hcl(g)a. mass onlyb. mass and moles onlyc. mass, moles, and molecules onlyd. mass, moles, molecules, and volume

8) warming your hands by a fire is an example if which heat transfer? a. conduction b. convection c. radiation d. none of these