Use the pH scale to answer the question.If the pH of a solution increases by 4, how much does the hydrogen ion concentration change? Does the change make the solution more acidic or more basic?
A. Decreases by a factor of 10,000; more basic
B. Increases by a factor of 40; more acidic
C. Increases by a factor of 10,000; more acidic
D. Decreases by a factor of 40; more basic
Answer: A
Mathematics
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Add or subtract as indicated and write the result in standard form.1 - (7 - 6i) - (2 - 7i)
A. -8 + 13i B. -9 - 13i C. -9 + 13i D. -8 - 13i
Mathematics
Convert as indicated. If necessary, round to two decimal places.14 ounces to grams
A. 396.9 g B. 6.3 g C. 30.8 g D. 0.56 g
Mathematics
Evaluate the algebraic expression for the given values of the variables.
for x = 1 and y = 18
A. 16 B. 21 C. 5 D. 8
Mathematics
Decide whether the set of ordered pairs is a function.{(-5, 3), (-3, 4), (3, -6), (6, -9)}
A. Function B. Not a function
Mathematics