Questions by Knowledge Cube

Questions by Knowledge Cube

For a TRIS buffer with a \( \mathrm{pKa} \) value of 8.30 and a solution with a pH of 6.50, what is the ratio of [TRIS]/[TRIS-H+]?

asked Dec 21, 2024

1 answer

4 votes

219k views

Using the digits 0, 1, 2, ...8, 9, determine how many 8-digit lock combinations are possible according to the following criteria?

asked Nov 16, 2024

1 answer

4 votes

96.9k views

How many significant figures does the number 1.006 x 10⁷ have? A) 3 B) 4 C) 5 D) 6 E) 8

asked Oct 24, 2024

1 answer

0 votes

182k views

Ellen went on a vacation to California. (fun / sunny) Combined the words together

asked Oct 20, 2024

1 answer

1 vote

86.0k views

Would Americans celebrating Cinco de Mayo be an example of cultural divergence or cultural convergence? Why do you think so?

asked Sep 1, 2024

1 answer

1 vote

234k views

Evaluate 3 - 1. a) 2 b) 3 c) 1 d) 99

asked Jul 22, 2024

1 answer

1 vote

193k views

A pharmacy must report activity to the controlled substance prescription monitoring program every ____.

asked Jun 1, 2024

1 answer

0 votes

4.4k views

Olivia is going on a 490 mile journey. So far, she has travelled 1% of her journey. How many miles has she travelled

asked Oct 15, 2023

1 answer

4 votes

25.5k views

The graphs of f(x) and g(x) are shown below: What are the solutions to the equation f(x) = g(x)?

asked Jul 13, 2023

1 answer

4 votes

12.2k views

0.35(x + 4) = 0.25(x - 6)

asked Jun 3, 2023

2 answers

2 votes

55.3k views

2. Rivalry among producers or sellers of similar goods and services to win more business. a)Profit incentive b) Private property c) Competition d) Freedom of choices What’s the answer

asked Mar 9, 2023

2 answers

4 votes

89.3k views

Padma has room to line up 8 figurines in a display case. How many different ways can she arrange the figurines in the display case? Enter your answer in the box. ways

asked Jan 8, 2023

2 answers

7 votes

21.6k views

Help pls and thank you

asked Jan 5, 2023

1 answer

5 votes

226k views

If you travel 500 kilometers in 5 hours, your average speed is 5 km/h 50 km/h 100 km/h 250 km/h

asked Nov 10, 2022

2 answers

14 votes

28.0k views

Which number will make the two fractions equivalent 10/38 = 5/?

asked May 1, 2022

2 answers

5 votes

183k views

What key events does Caylin Louis Moore experience in Chapter 5 of A dream too big?

asked Apr 26, 2022

1 answer

3 votes

24.0k views

HELP!!!! ILL GIVE THE CROWN THINGY THING!!!!!!!!!! DUE SOON!!!!!!!!! PLS HELP!!!!!!!!!! Why must many of the telescopes that detect invisible wave, such as infrared, microwaves, and gamma rays, be placed

asked Apr 14, 2022

1 answer

1 vote

124k views

The set of negative energy is greater than -7

asked Mar 3, 2022

1 answer

1 vote

148k views

When a data set has an even number of elements, the median is calculated by A averaging the middle two values B. subtracting the middle two values C. eliminating any outliers and recalculating the median

asked Feb 23, 2022

1 answer

1 vote

67.2k views

Alan and Monica tested how fertilizer X affected the growth of a plant. Alan and Monica put 100 grams of fertilizer X in pot 1. They put 0 grams of fertilizer X in pot 2. What is pot 2 called in science?

asked Feb 1, 2022

1 answer

11 votes

55.2k views

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