Which statement is true of chemical equations? A. Reactants are on the right. B. Products are on the right. C. Products have fewer atoms than reactants. D. Reactants have fewer atoms than products.

What features do all reactions involving enzymes have in common?

Which of the following is a pure substance that cannot be broken down by a chemical reaction? A. a compound, B. a mixture, C. an element, D. a neutron.

Which statement is not true about pure water? A. It has a pH of 7.0. B. It is composed of polar molecules. C. It is composed of ionic bonds. D. It is a good solvent.

Which process changes a chlorine atom into a chloride ion? A. electron gain, B. electron loss, C. proton gain, D. proton loss.

Explain the difference between the terms in each set. spongy bone, compact bone

Is this equation completely balanced? 2C8H8 + 25O2 (to) 8CO2 + 18H2O

A.No, because the number of carbon, hydrogen, and oxygen atoms on both sides of the equation are not equal.

B.No, because the number of oxygen atoms on both sides of the equation are not equal.

C.Yes, because all of the coefficients are in their lowest whole number ratio.

D.No, because the number of hydrogen atoms on both sides of the equation are not equal.

E.Yes, because the number of products is equal to the number of reactants."

Which of the following statements about chemical equations is(are) true? In a chemical equation, the reactants are on the right and the products are on the left.

Which of the following is not a component of evolution by natural selection?
a. Variation exists within a population.
b. Organisms compete for resources.
c. Individuals have different reproductive success.
d. Organisms adapt due to environmental changes.
e. Species are fixed.

Which statement best describes what happens to chemical bonds in a reaction? A Bonds are only broken, not formed, B Bonds are only formed, not broken. C Bonds in the reactants are broken, and bonds in the products are formed. D Bonds are neither formed nor broken.

Which of the following statements about chemical equations is (are) true? a. When balancing a chemical equation, you can never change the coefficient in front of any chemical formula. b. The coefficients in a balanced chemical equation refer to the number of grams of reactants and products. c. In a chemical equation, the reactants are on the right and the products are on the left. d. When balancing a chemical equation, you can never change the subscripts of any chemical formula. e. In chemical reactions, matter is neither created nor destroyed, so a chemical equation must have the same number of atoms on both sides of the equation.

Which muscle type depends solely on the sarcoplasmic reticulum as its calcium source?

RNA plays a role in which of the following?
a. Transferring hereditary Information from cell to cell when cells divide
b. Synthesizing lipids
c. Copying Instructions from DNA
d. Synthesizing proteins
e. Synthesizing proteins and copying Instructions from DNA

The gecko is a reptile that climbs on smooth surfaces such as glass using van der Waals forces to adhere to the surface. How is this method of adhesion more advantageous than covalent interactions?