Which of the following radiation sources provides the greatest radiation dose?
one year of natural background radiation
one x-ray at the dentist
food that has been irradiated
a nuclear power plant

Choose all the answers that apply. ionic compounds dissolve easily in water do not dissolve in water have low melting points have high melting points conduct electricity when melted

In a chemical reaction, the number of moles of the reactants a. should never be equal to the number of moles of the products. b. may or may not be equal to the number of moles of the products. c. depends on the amount of product that is formed. d. should always be equal to the number of moles of the products.

What is the solution to the problem to the correct number of significant figures (102,900/12)+(170•1.27)