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Flura [38]
3 years ago
8

What kind of change occurs when a compound is separated into its components?

Chemistry
1 answer:
horrorfan [7]3 years ago
7 0
It requires energy to break those bonds, resulting in an endothermic reaction. It'll feel cold to you.
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An atom
Natasha2012 [34]

Answer:

Doesnt take up space

Explanation:

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4 years ago
How many atoms are in c8h8o3?<br> Show your work
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How do H3O+ and OH relate to acids, bases and the pH scale?
Liula [17]

Answer: An acid is defined with having more [H₃O+] ions, and a base is defined with having more [OH-] ions. On the pH scale, an acid has a lower pH and a base has a higher pH. With this being said, the lower the pH, the more [H₃O+] ions are present and the higher the pH, the more [OH-] ions are present.

Explanation:

I hope this helps!! Pls give brainliest!! :)

6 0
2 years ago
What does the formula H2O mean
forsale [732]
2 hydrogen and 1 oxygen makes water
3 0
3 years ago
Read 2 more answers
You are instructed to create 900. mL of a 0.29 M phosphate buffer with a pH of 7.8. You have phosphoric acid and the sodium salt
Aleksandr [31]

Answer:

B and C

Explanation:

When we have to do a buffer solution we always have to choose the reaction that has the <u>pKa closer to the desired pH value</u>. When we find the pKa values we will obtain:

pKa_1=-Log[6.9x10^-^3]=2.16

pKa_2=-Log[6.2x10^-^8]=7.20

pKa_3=-Log[4.8x10^-^13]=12.31

The closer value is pKa2 with a value of 7.2. Therefore we have to use the second reaction. In which  H_2PO_4^-^1 is the <u>acid</u> and HPO_4^-^2 is the <u>base</u>. Therefore the answer for the first question is B and the answer for the second question is C.

8 0
3 years ago
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