Using the equation PH = -log (H+), a solution with a (H+)= 10+ M has a PH of which of the following?

A. 9

B. 5

C. 1

D. 10

Answer Explanation:

Concentration of H+ in the solution = 10 −1 M

pH= -log(10 −1)

pH= -(-1)

Therefore, the Correct Answer is C.

Q #1: Which of the following pathways best represents the expected flow of blood from the human heart to an organ?

A. Blood pumped from the heart first enters arterioles that then merge to form arteries that deliver blood to the organ

B. Blood pumped from the heart first enters arteries that then narrow to form arterioles that deliver blood to capillaries of the organ

C. Blood pumped from the heart first enters versus that then narrow to form venules that deliver blood to arteries to the organ

D. Blood pumped from the heart first enters arteries that then narrow to form arterioles that deliver blood to capillaries

Answer Explanation

From the heart, blood flows through major arteries, which then branch to give rise to arterioles, which then divide into capillaries that deliver blood to the target organ.
Q #2: Which of the following tissues lines the interior structures of the heart?

A. Epicardium

B. Pericardium

C. Myocardium

D. Endocardium

Answer Explanation

The endocardium lines the interior structures of the heart. It is a thin, innermost layer of the heart wall that lines the heart chambers and valves. It is composed of subendocardial connective tissue and endothelial cells that are continuous with blood vessel endothelium.
Q #3: Which of the following is classified as a noninfectious disease?

A. Psoriasis

B. Brucellosis

C. Olkunginys

D. Dengue

Answer Explanation

Psoriasis is a chronic skin condition that causes red, scaly patches on the skin. It is not contagious, and it is not caused by any microorganism. It is believed to be an autoimmune disorder where the immune system attacks healthy skin cells.

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Using the equation PH = -log (H+), a solution with a (H+)= 10+ M has a PH of which of the following?

More Questions on TEAS 7 Science

Q #1: Which of the following pathways best represents the expected flow of blood from the human heart to an organ?

Answer Explanation

Q #2: Which of the following tissues lines the interior structures of the heart?

Answer Explanation

Q #3: Which of the following is classified as a noninfectious disease?

Answer Explanation

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