Which of the following chemical reactions is an oxidation-reduction reaction? cuso4 + bacl2 yields baso4 + cucl2 pb(no3)2 + 2nacl yields pbcl2 + 2nano3 n2 + 3h2 yields 2nh3 k2so4 + bacl2 yields baso4 + 2kcl

Which statement about sound is not true? a. air particles travel with sound waves. b. sound waves cannot travel through a vacuum. c. sound waves exist even if no one hears them. d. air particles vibrate along the path of a sound wave.

If you burn 10 kilograms of wood in a fire (combustion) what is the weight of the products after the fire has finished burning the wood?

Identify two types of chemical bonding in the source of dietary potassium