Select the pair of elements that is most likely to form an ionic bond. A. hydrogen and helium B. lithium and potassium C. potassium and iodine D. iron and zinc

Why does water have a higher specific heat than salt water

Mole Introduction 1. How many cents are in one mole of pennies?

According to Dalton's atomic theory, elements are composed of tiny particles called ___. Atoms of each element are ___ from the Atoms of all other elements. Atoms of different elements can form ___ by combining in whole-number rations.

by what factor does the average kinetic energy of the molecules of gas in an aerosol increase when the temperature is raised from 27 C to 627 C?

What is the change in electrons for sulfur in the following reaction? SO 2 (aq) + Cr 2 O 7 2 - (aq) - > SO 4 2 - (aq) + Cr 3 + (aq)

Which of the following are chemicals? A. clothing B. food C. fuels D. all of the above

How many valence electrons are in atom of sulfur?

My sister needs this answered! Donald is creating an experiment to determine if fertilizer affects plant color. He makes this statement: "If each plant receives a different amount of fertilizer, then the plant's color intensity will change.

What would happen to life if earth were in a different location within the solar system

Substance that undergoes a change in a chemical reaction is a. a product c. a reactant. b. a chemical. d. an enzyme.