Which of the following is not a source of genetic variation?

A. Mutations

B. Sexual reproduction

C. Lateral gene transfer

D. Asexual reproduction

The reaction rates of many spontaneous reactions are actually very slow. Which of these statements is the best explanation for this observation? a. Kp for the reaction is less than one b. ÎG° for the reaction is positive c.

To be classified as organic, a chemical es molecules must be A. Based on oxygen B. Living C. Based on carbon D. decomposed

How many Valence electrons does Li have?

1. Which of the following rules determines the charge on a monatomic Ion formed from a nonmetal? A. Group number - 8 B. Group number/8 C. 8 - group number D. 8 x group number 2. Which of the following statements is true? A.

Which of the following is a change in which a new substance is formed? A) cutting a slice of cheese into two pieces B) burning wood in a campfire C) an ice cube melting D) sanding wood into a pile of saw dust

What characteristic is shared by most simple polyatomic ions? A) They are anions. B) They are bonded ionically. C) They are cations. D) They have positive charges.

Potassium ions (k+) have a positive charge. What happens to a potassium atom electrons when it becomes an ion

At what pH do you think acids become too dangerous to touch? Basis? Explain your answers.

How do endothermic processes differ from exothermic processes

Before a race, an athlete warms up by jogging around the track shown below at a constant rate of 2.3 m/s. What statement best describes his motion as he jogs around the curved part of the track?