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3 years ago

Which type of space probe is designed to explore several planets or moons from space as it travels past them?

1 answer:

8 0

C) the term"orbit' means to revolve around a certain object thus the term to orbit is the most accurate option in witch there is to choose!

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Given the diagrams X, Y, and Z below:

liq [111]

Answer: The answer is Z only

I’m assuming the answer choices are

1) x only

2) Z only - the answer

3) X and Y

4) X and Z

Explanation:

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3 years ago

A sample of gas of 752 torr and occupies a volume of 5.12 L. What will the new volume be when the pressure is increased to 1.5 A

Katyanochek1 [597]

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3 years ago

Why was plastic first invented? How is plastic bad for the environment?

olya-2409 [2.1K]

Answer: The first plastic based on a synthetic polymer was invented in 1907. Plastic sticks around in the environment for ages, threatening wildlife and spreading toxins.

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2 years ago

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John is outstanding forward on his club select soccer team. He is know for his ball control and speed. After a game he often mak

natima [27]

Answer:

This self evaluation helps them to better his sport.

Explanation:

This is the right way to evaluate the performance of John because this sketch shows him the way he perform in the match. Due to this sketch he can better his performance and remove all the mistakes he had done in the match which results in better performance of John in the next match. This self evaluation helps them to better his sport and got new chances in order to select for a better club or national soccer team.

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2 years ago

What does the pKa of the conjugate acid of a base have to be to remove a hydrogen from water (pKa = 15.7) so that the ratio of h

Inga [223]

Answer:

The pKa of the conjugate acid is 17.7

Explanation:

If hydrogen is removed from water, the equilibrium concentration of the conjugate acid according to the information given in the question becomes,

Kₐ = [OH⁻]/[H₂O]

$K_a=\frac{100}{1} =100$

Now, we determine the equivalent pKa

pKa = -log[ka]

pKa = -log[100]

pKa = -2

Removal of hydrogen from water is reversible as shown below;

H₂O ⇄ OH⁻ + H⁺

15.7 -2

This reaction is reversible, and the difference in pKa = pKa[H₂O] - pKa[H⁺];

pKa of the conjugate acid = 15.7 - (-2) = 17.7

The pKa of the conjugate acid is 17.7

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3 years ago