25 The chemical process in which electrons are gained by an atom or an ion is called (1) addition (3) reduction

(2) oxidation (4) substitution

Phenylpyruvic acid is produced in the body of abnormal amounts as the result of a molecular disease called phenylketonuria, which causes irreversible brain damage. phenylpyruvic acid is composed of 65.85% c, 4.91% h, and 29.24% o.

As the masses of two objects decrease, how does the gravitational force between the two bodies change? A. The gravitational force increases. B. The gravitational force decreases. C. The gravitational force begins to repel the objects. D.

What is toxicity? Give an example of something from your home.

A solution of H2SO4 (aq) with a molal concentration of 5.25 m has a density of 1.266 g/mL. What is the molar concentration of this solution?

After a hunt, a wolf eats more food than it needs at that time. The extra glucose combines to form which substance? a) starch b) glycogen c) cellulose d) sucrose

How many grams of CuSO4 are there in 100.0 g of hydrate? How many moles?

Which student is determining the atomic mass of sodium?

Ionic compounds can conduct electricity when dissolved in water or melted, because a. the ions are free to move. b. they have no ions to contribute to the solution. c. the ions are fixed in place. d. they have shared electrons.

What does the number next to the ion signify?

Write a molecular equation for the precipitation reaction potassium chloride and lead (II) acetate