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Colt1911 [192]
3 years ago
5

Question 15 (1 point)

Chemistry
1 answer:
Yuliya22 [10]3 years ago
6 0

Answer:

mh cjwe cejwh cjefblewkbfhfwouf

Explanation:

jhbckwjebfljbewfjbwefbwc

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On the pH scale, a 7 indicates _____.<br> a base<br> an acid<br> neutrality
worty [1.4K]

The correct answer is:

neutrality

on the pH scale 7 is neutral above 7 is basic and below 7 is acidic.

Explanation:

The pH is an example of how acidic/basic water is. The scale goes from 0 - 14, with 7 being neutral, pH of less than 7 designates acidity, whereas a pH of greater than 7 intimates a base. pH is really a pattern of the relative amount of free hydrogen and hydroxyl ions in the water.pH is a measure of how acidic/basic water is.

It is neutral because, at this pH, the molar concentrations of Hydroxide and Hydronium are same, therefore the substance is not a base nor an acid.

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This is a material that allows heat/electricity to transfer.
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A material that allows heat/electricity to transfer is called a conductor.
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The unit pg stands for pictogram. It is one-trillionth of a gram. Because of the very small mass, it is expressed in the prefix form of the base units for convenience. Now, the mass of cofactor a is 41.5 pg per cell. Since there are a total of 105 cells, the total mass would be:

Total mass = 105 cells * 41.5 pg/cell = 4,357.5 pg 
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i think the answer is 1.56mol H2O

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