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brilliants [131]
3 years ago
14

(01.04 MC)

Chemistry
1 answer:
iogann1982 [59]3 years ago
6 0
I turned in this exact assignment today haha

the blood vessels dilate to draw body heat away from the body and towards the surface of the skin
sweat glands release sweat, when sweat evaporates it releases heat
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Sulfuric acid (H2SO4) reacts with potassium hydroxide (KOH) as follows. H2SO4(aq) + 2 KOH(aq) K2SO4(aq) + 2 H2O(l) Calculate the
8090 [49]

<u>Answer:</u> The volume of H_2SO_4 comes out to be 10.2625 mL.

<u>Explanation:</u>

To calculate the concentration of acid, we use the equation given by neutralization reaction:

n_1M_1V_1=n_2M_2V_2

where,

n_1,M_1\text{ and }V_1 are the n-factor, molarity and volume of acid which is H_2SO_4

n_2,M_2\text{ and }V_2 are the n-factor, molarity and volume of base which is KOH.

We are given:

n_1=2\\M_1=0.100M\\V_1=?mL\\n_2=1\\M_2=0.0821M\\V_2=25mL

Putting values in above equation, we get:

2\times 0.100\times V_1=1\times 0.0821\times 25\\\\V_1=10.2625mL

Hence, the volume of H_2SO_4 comes out to be 10.2625 mL.

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3 years ago
The major difference between a 1s orbital and a 2s orbital is that
Neko [114]

Answer:

The 2s orbital is at a higher energy level.

Explanation:

1s and 2s are the sub-orbitals that are located in an atom. They are nearest to the nucleus and are found on the s sub-orbital. The difference between 1s and 2s is the difference in their level of energy. 1s has low energy as compared to 2s. 1s orbital has the lowest energy because it is located closed to the nucleus. 2s orbital has higher energy than 1s because it's orbit is larger than 1s.

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Yes

Explanation: Yes it depends on what kind of animal but yes it can help

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What is a centrifuge used for?
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Hope this helps!</span>
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