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Aleks04 [339]
2 years ago
13

When you exercise strenuously, your body produces excess heat. Describe what your body does to help prevent your temperature fro

m rising excessively and
explain why your body's response effective.
Chemistry
2 answers:
postnew [5]2 years ago
8 0

Answer:

you sweat which makes your body cool down so that you don't overheat and faint.

Explanation:

VARVARA [1.3K]2 years ago
7 0

Answer:

Your body can cool itself by sweating. When sweat evaporates, it lowers your temperature

Explanation:

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Answer:gravity

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7 0
3 years ago
The ka of hypochlorous acid (hclo) is 3.0 ⋅ 10−8 at 25.0 °c. calculate the ph of a 0.0375m hypochlorous acid solution.
Scrat [10]
We can set up an ICE table for the reaction:                      
                      HClO          H+     ClO-
Initial              0.0375       0        0
Change         -x               +x      +x
Equilibrium    0.0375-x     x        x

We calculate [H+] from Ka:     
     Ka = 3.0x10^-8 = [H+][ClO-]/[HClO] = (x)(x)/(0.0375-x)

Approximating that x is negligible compared to 0.0375 simplifies the equation to         
     3.0x10^-8 = (x)(x)/0.0375     
     3.0x10^-8 = x2/0.0375     
     x2 = (3.0x10^-8)(0.0375) = 1.125x10^-9     
     x = sqrt(1.125x10^-9) = 0.0000335 = 3.35x10^-5 = [H+]
in which 0.0000335 is indeed negligible compared to 0.0375.

We can now calculate pH:     
     pH = -log [H+] = - log (3.35 x 10^-5) = 4.47
6 0
3 years ago
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Kisachek [45]

Answer;

(3) Substance A is an element and substance Z is a compound.

Explanation;

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- Compounds can be broken down or decomposed into simpler substances: elements cannot be broken down chemically into simpler substances .

5 0
3 years ago
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Protons have a positive charge true or false
aksik [14]

Answer:

True

Explanation:

Protons have a positive electrical of +1

6 0
3 years ago
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