Determine the best formula for reacting elements.

calcium and iodine

A. Cal

B. Cal2

C. Ca2l

D. Ca2l2

Papa bless Which of the following describes the idea that heat is transferred as thermal energy by the interaction of moving particles. the kinetic theory of heat thermal energy kinetic energy the theory of thermal equilibrium

What is true of a decomposition reaction? The reactants are usually a metal and a nonmetal. The reactants are generally two ionic compounds in an aqueous solution. The addition of energy in the form of heat or electricity is often required.

The speed of light is (2.998x108/3.00x109) meters per second.

The equilibrium constant is given for one of the reactions below. Determine the value of the missing equilibrium constant. H2 (g) + Br2 (g) ⇌ 2 HBr (g) Kc = 3.8 * 104 4 HBr (g) ⇌ 2 H2 (g) + 2 Br2 (g) Kc = ?

Explain why it is not necessary to use excess alcohol in the reaction of an acyl chloride with an alcohol.

An atom of oxygen (atomic number 8) with an atomic mass of 16 would have how many neutrons?

Chlorophyll reflects which of these colors? a. red b. blue c. green d. yellow

Extracting oil from shale deposits a has been initiated on a large scale in the United States and will soon surpass Canada's production. b involves removing and refining waxy hydrocarbons called kerogen.

Which shows the levels of organization within an ecosystem from largest to smallest?

the physical properties of 10 grams of iron are the same as the ___ properties of 20 grams of iron a) reactive b) physical c) chemical