Which reaction below represents the second ionization of sr?

a. sr (g) → sr⁺ (g) + e⁻

b. sr2⁺ (g) + e⁻ → sr⁺ (g)

c. sr⁺ (g) + e⁻ → sr (g)

d. sr⁻ (g) + e⁻ → sr2⁻ (g)

e. sr⁺ (g) → sr2⁺ (g) + e⁻?

How is the number 3.91 x 10 - 4 expressed in regular numbers? A. 0.3910000 B. 0.0000391 C. 0.0391 D. 0.000391

Select the number of valance electrons for hydrogen A.) 1 B.) 0 C.) 3 D.) 2

Any change in velocity can be described as Question 3 options: Acceleration Movement Friction Speed

Acetyl-CoA labeled with 14C in both of its acetate carbon atoms is incubated with unlabeled oxaloacetate and a crude tissue preparation capable of carrying out the reactions of the citric acid cycle.

Which planet has a thick atmosphere, which is mainly composed of carbon dioxide? A. Mars B. Mercury C. Earth D. Venus

What do we call the process by which cells obtain the energy that they need?

Which of the following statements describes how the periodic table is organized? 1. The elements are organized alphabetically. 2. The elements are organized by their size. 3. The elements are organized by the date they were discovered. 4.

Which of the following is a mixture A aluminum B BaSO3 C Milk D table salt

Which of the following quantum number combinations is not allowed in an atom? A. n = 2, l = 1, mr = - 1 B. n = 1, l = 1, m = 0 C. n = 8, l = 5, m = - 4 D. n = 6, l = 3, m = 2

13. Adding thermal energy to a gas at constant pressure will cause