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worty [1.4K]
3 years ago
9

If you can walk 2.1 miles in 35 minutes, how many days will take you to con

Chemistry
1 answer:
mel-nik [20]3 years ago
8 0

Answer:

HINT: calculate how much distance you walk in one minute(35 divided by 2.1), then multiply that by 60 to find how far you'll walk in an hour.

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siniylev [52]
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3 years ago
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How many moles are in 65 g of carbon dioxide (CO2)?
ella [17]

The answer is 44.0095. We assume you are converting between grams CO2 and mole.
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Answer:

pH value of a solution depends on the concentration of hydrogen ions

(pH = -log[H+(aq)].

Hydrochloric acid is a strong acid, while ethanoic acid is a weak acid. Strong acids ionize completely in water (to give ions which includes H+(aq)), while weak acids only ionize partially in water.  

Therefore, even if both hydrochloric acid and ethanoic acid are monobasic acids (each molecule can ionize completely to give 1 hydrogen ion), since hydrochloric acid ionizes completely in water and ethanoic acid does not ionize completely, the concentration of hydrogen ions in hydrochloric acid is higher than that of ethanoic acid, leading to a lower pH value for hydrochloric acid, while higher for ethanoic acid.

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3 years ago
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FromTheMoon [43]
Corresponding in size or amount to something else.
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3 years ago
Anouk does 150 J of work using a hammer to pull a nail out of a piece of wood, and the hammer does 105 J of work on the nail. Wh
astraxan [27]
The efficiency of any machine is given by:

efficiency = output obtained / input given

Substituting the values,
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Converting this to a percentage, the efficiency of the hammer is 70%.
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