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Vitek1552 [10]
2 years ago
11

Some birds migrate 20,000 miles. If 1 mile is 1.6 kilometers, calculate the distance these birds fly in kilometers.

Chemistry
1 answer:
Andre45 [30]2 years ago
4 0

Answer:

32000 kilometers

Explanation:

In order to <u>convert from miles to kilometers</u>, we need to use a<em> conversion factor</em>. In other words, we put miles in the denominator and kilometers in the numerator, as follows:

  • 20000 miles * \frac{1.6km}{1mile} = 32000 kilometers

That way the units for miles cancel each other, leaving the equivalent amount in kilometers.

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What happens to the hydrogen ion (H+) concentration as an aqueous
padilas [110]

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Explanation:

It can be determined by measuring the Ph. D is incorrect.

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B: is the correct answer.

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A 800N mountain climber scales a 160m cliff. How much work is done by the mountain climber?
Fittoniya [83]

Answer:

Work done, W = 128 kJ

Explanation:

Given that,

Weight of a mountain climber, F = 800 N

It climbs to a cliff that is 160 m high.

We need to find the work done by the mountain climber. The work done by an object is given by the formula as follows :

W = Fd

Put the values of F and d.

W = 800 N × 160 m

W = 128000 J

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3 0
2 years ago
2NO (g) + O2 (g) →2NO2 (g) At equilibrium [NO] = 2.4 × 10 -3 M, [O2] = 1.4 × 10 -4 M, and [NO2] = 0.95 M.
azamat

Answer:

K=1.12x10^9

Explanation:

Hello there!

Unfortunately, the question is not given in the question; however, it is possible for us to compute the equilibrium constant as the problem is providing the concentrations at equilibrium. Thus, we first set up the equilibrium expression as products/reactants:

K=\frac{[NO_2]^2}{[NO]^2[O_2]}

Then, we plug in the concentrations at equilibrium to obtain the equilibrium constant as follows:

K=\frac{(0.95)^2}{(0.0024)^2(0.00014)}\\\\K=1.12x10^9

In addition, we can infer this is a reaction that predominantly tends to the product (NO2) as K>>>>1.

Best regards!

4 0
3 years ago
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