Which of these changes occurs during a nuclear change?

A. No energy is involved in the reaction.

B. The nucleus disappears.

C. Matter changes from one state to another.

D. Elements are created that differ from the reactants.

Which of the following is not one of the five general types of reactions? a. synthesis c. single replacement b. decomposition d. recomposition

Sam bought 2 1/4 pounds of swiss cheese 1 1/2 pounds of cheddar at the deli how many pounds of cheese did sam buy altogether

Why are the four major divisions of earths history useful?

Choose the FALSE statement. A. All living things contain stable C-12. B. All living things contain unstable C-14. C. The half-life of C-14 is about 40,000 years. D. The lower the C-14 to C-12 ratio is in a remnant of a living thing, the older it is.

2. How many lone pairs are assigned to the iodine atom in IF? b. 1 c. 2 d. 3 a. 0 e. 4

elements on the right side of the periodic table differ from the elements on the left side in that elements on the right side

The empirical formula of glucose is CH2O the molecular formula of glucose is 6 times than the empirical formula. what is the molecular formula of glucose?

A compound with molecular formula C6H15N exhibits a singlet at d 0.9 (1H), a triplet at d 1.10 (3H), a singlet at d1.15 (9H), and a quartet at d 2.6 (2H) in its 1HNMR spectrum. Its IR spectrum shows one medium absorption band near 3400 cm-1.

A system that transmits genetic information from one generation to the next

Consider the following four solutions: a. NaCl in water b. Acetic acid in water c. Acetic acid in benzene d. Naphthalene in benzene Which of these solutions has the strongest solute-solvent interactions and the interaction is of which type?1.