In a chemical reaction, the difference between the potential energy of the products and the potential energy of the reactants is defined as the

(1) activation energy

(2) ionization energy

(3) heat of reaction

(4) heat of vaporization

What is is the average mass of a proton or a neutron? a) 1 amu b) 2 amu c) 3amu d) 4 amu

Which is the best label for the dotted-line arrow? O force of Earth's gravity O moon's attraction to the Sun O moon's motion without gravity O orbit of the moon around Earth rth

What is the half life of an isotope that is 75% decayed after 16 days?

An atom can be described as a-the smallest particle that has all the characteristics of a compound b-the smallest particle that has all the characteristics of an element c-a charged particle that is similar to a molecule d-a charged particle that is

1-Which reaction shown below is carried out by nitrifying bacteria? I will mark you as brainlist Choose: A.{ammonium} to {nitrate} B.{nitrate} to {nitrogen gas} C.{nitrogen gas} to{ammonium}

What is the atomic number of magnesium?

Explain how earth plates and lithosphere are related

What is the name for the Fe2 + cation? Iron ion Iron (II) ion Ironide Ferride ion

When designing an experimental investigation, why is it important to test only one variable?

Most fruit juices are a solution of water, sugar, and fruit-specific chemicals. in this solution, identify the solvent and solutes.