2. Which of the following pairs of reactants will occur most quickly?

(1) sodium chloride and silver nitrate

(3) hydrogen and propene

(2) water and hydrogen chloride

(4) oxygen and methane (CHA)

Does fat and soap have the same density

Although electrons have mass, they are not considered in determining the mass number of an atom. Why?

Is the following item durable or nondurable? hamburger

Air is made of seperate molecules of Oxygen, Nitrogen, and Carbon Dioxide. Is the air a pure substance or a mixture? Explain.

Which one is smaller? neutron proton electron atom

During an endothermic phase change, what happens to the potential energy and the kinetic energy? Potential energy stays the same, and kinetic energy increases. Potential energy increases, and kinetic energy increases.

In the following atomic model, where does the strong nuclear force happen? А B с -0 outside A between A and B between B and C O inside C

Which groups of elements on the periodic table form metal ions that do not require roman numerals in their names?

Write the Chemical formula for the conjugate base of the following Bronsted-Lowry acids. A) H2SO4 B) HPO4^2-

The heat from the bonfire is transferred to the student's hands through the process of