What three things happen in order for a chemical reaction to occur?

What tupe of ions will sodium and chlorine each form

What conversion process takes place in an electrolytic cell? A.) chemical energy is converted to electrical energy. B.) electrical energy is converted to chemical energy. C.) electrons converted to ions. D.) ions converted to electrons. E.

Which of the following statements is true? A. Igneous rocks form from the cooling and crystallization of magma. B. Fossils are frequently found in metamorphic rock. C. Sedimentary rocks are formed as a direct result of chemical weathering. D.

Which organism has a nerve net? A fish B hydra C flatworm D sponge

A 50.0 mL sample containing Cd2 + and Mn2 + was treated with 56.3 mL of 0.0500 M EDTA. Titration of the excess unreacted EDTA required 13.4 mL of 0.0310 M Ca2+. The Cd2 + was displaced from EDTA by the addition of an excess of CN-.

Draw the organic product of the following nucleophilic reaction

How does the energy of the activated complex compare with the energies of reactants and products? select one: a. it is lower than the energy of both reactants and products. b.

A student asked to convert measurements from liters to mililiters and from mililiters to liters. His answers are shown in bold in the choices shown below. On which choice did he make a mistake?

Donald is making a model of a nitrogen atom. The box for nitrogen in the periodic table is shown. To represent a neutral atom, which of these must Donald include in his model?

What are the charges and relative masses of the 3 main subatomic particles