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kenny6666 [7]
1 year ago
10

A substance is tested and has a ph of 7.0. how would you classify it? a. a strong acid b. a strong base c. a weak acid d. neutra

l
Mathematics
1 answer:
Eddi Din [679]1 year ago
5 0

<u>A substance is tested and has a </u><u>Ph of 7.0</u><u>. It would be </u><u> a weak acid. </u>

<u>The correct option is </u><u>(c) a weak acid .</u>

<u></u>

What is the nature of substance if the pH is less than 7?

  • Acidity is defined as pH below 7. More than 7 pH is considered basic.
  • Each whole pH number below 7 is ten times more acidic than the next higher value since the pH scale is logarithmic.
  • For instance, pH 4 is 100 times (10 times 10) more acidic than pH 6, while pH 5 is ten times (10 times) more acidic than pH 4.

What is pH?

  • The pH scale determines how acidic or basic water is.
  • The range is 0 to 14, with 7 representing neutrality.
  • Acidity is indicated by pH values below 7, whereas baseness is shown by pH values above 7.
  • In reality, pH is a measurement of the proportion of free hydrogen and hydroxyl ions in water.

Learn more about pH

brainly.com/question/27945512

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If a watch costs $40 and you must pay 6.5 % sales tax, how much will the tax be?
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$2.60

Step-by-step explanation:

40 x 0.065 = $2.60

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What is the square root of 64y^16?
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Solve for the value of z: 14/5 = z/24<br> ____?
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Answer:

Step-by-step explanation:

Cross multiplying

5z =14*24

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Or mixed fraction z= 67(1/5)

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Which statement is true about the product square root of 2(3square root of 2 + square root of 14)?
sukhopar [10]

Answer:

\sqrt{2} (3\sqrt{2} +\sqrt{14})=6+2\sqrt{7}

Step-by-step explanation:

Given : \sqrt{2} (3\sqrt{2} +\sqrt{14})

Solution:

\sqrt{2} (3\sqrt{2} +\sqrt{14})

3*2+\sqrt{28})

6+2\sqrt{7}

Thus ,  \sqrt{2} (3\sqrt{2} +\sqrt{14})=6+2\sqrt{7}

Thus the solution is irrational since square root 7 does not have a perfect square and equal to 6+2square root of 14

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I’m stuck please help ? Due tomorrow
Shkiper50 [21]
Here are two ways of doing it.

************************************************************

1) The current price is 100% of the price. The price went down by 6%, so since 100% - 6% = 94%, the new price is 94% of the original price.

94% * 175 = 0.94 * 175 = 164.50

The new price is 164.50

*******************************************************

2) The discount is 6% of 175, so first, we find the discount.

6% of 175 = 0.06 * 175 = 10.5

Now we subtract the amount of the discount from the original price.

175 - 10.50 = 164.50

The new price is 164.50

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As you can see, both methods give you the same answer, 164.50
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