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Snezhnost [94]
3 years ago
12

You are on an alien planet where the names for substances and the units of measures are very unfamiliar.

Chemistry
1 answer:
neonofarm [45]3 years ago
5 0

Given that in the alien planet the names of substances and the units in which they are measured in not familiar.

8 quibs of a substance called skvarnik is present.

The conversion factor between sleps and quibs is: 9 sleps = 13 quibs

Converting 8 quibs of skvarnick to sleps:

8 quibs * \frac{9 sleps}{13 quips}= 5.54sleps

5.54 when rounded to nearest tenth becomes 5.5.

So the correct answer would be 5.5



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In your own words, describe two conditions that are necessary for an eclipse to occur
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Which statement best describes the pH of pure water?
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The pH of pure water is neutral because the concentration of hydronium ions equals that of hydroxide ions.

Answer: Option A

<u>Explanation:</u>

Water is one of the most important constituents of living being. It is said that there is no life without water. So that water need to neutral in nature to save life. Pure water is composed of hydronium H^{+} and hydroxide \left(O H^{-}\right) ions. It is known that hydronium ions are acidic in nature with concentration of 1 \times 10^{-7} \mathrm{M} / \mathrm{L}.

Similarly, the hydroxide ions which are basic in nature will be in same concentration as that of hydronium ions. So, as the concentration of basic and acidic elements are equal with the same strength of pH, the combination of these ions lead to formation of pure water with the pH being neutral.

7 0
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What is the reason for heat transfer from one substance to another?
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3 years ago
In order to gain one pound of body weight, the average person must consume 3500 more calories
Fed [463]

Answer:

<em>17500 calories</em> of chocolate bars are needed to eat to gain 5 pounds.

Explanation:

We can use ratios to calculate the answer using the information given in the question.

1 pound : 3500 grams

5 pounds : x grams

As it is given that the individual is burning no calories, we do not have to factor in any additional numbers.

<u><em>Method</em><em> </em><em>A</em><em>:</em></u>

To go from 1 in the first ratio to 5 in the second ratio, they multipled 1 by 5. Hence, to go from 3500 in the first ratio to x in the second ratio, we must multiply by 5.

x = 3500 × 5

x = 17500

<em><u>Method B</u>:</em>

To solve for the answer x, we can convert the ratios into fractions.

1 / 5 = 3500 / x

3500 / x = 1 / 5

To make x the subject, multiply the denominator of the left fraction with the numerator of the right fraction and place it on the left side. Then multiply the numerator of the left fraction with the denominator of the right fraction and place it on the right side.

x = 5 × 3500

x = 17500

4 0
4 years ago
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