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Scilla [17]
3 years ago
9

1) What happened around 10,000 years ago that changed the way many humans live?

Chemistry
2 answers:
ziro4ka [17]3 years ago
6 0

Answer:

c

Explanation:

hope everything is good!!

love history [14]3 years ago
3 0
The answer is C

Hope it helps ;)
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When cations and anions join, they form what
uranmaximum [27]

Answer:

ionic

Explanation:

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2 years ago
Why do the pH scale generally range from 0 to 14 in aqueous solution?
zalisa [80]

Answer:

In aqueous solution the pH scale varies from 0 to 14, which indicates this concentration of hydrogen. Solutions with pH less than 7 are acidic (the value of the exponent of the concentration is higher, because there are more ions in the solution) and alkaline (basic) those with a pH higher than 7. If the solvent is pure water, the pH = 7 indicates neutrality of the solution

Explanation:

PH is a measure of how acidic or basic a liquid is. Specifically, from a dissolution. The acidity of a solution is essentially due to the concentration of hydrogen ions dissolved in it. In reality, the ions are not found alone, but are in the form of hydronium ions consisting of one oxygen molecule and three positively charged hydrogen. PH precisely measures this concentration. And to do it, we can use simple and very visual methods.

5 0
3 years ago
Differentiate benzene and cyclohexane
slega [8]
<span>• Benzene has the formula of C6H<span>6 </span>whereas cyclohexane has the formula of C6H<span>12.
</span></span>
Benzene is an aromatic compound but cyclohexane is not aromatic.

Benzene is an unsaturated molecule, but cyclohexane is saturated.
<span>
Carbon atoms in the benzene ring have sp2 hybridization where carbon atoms in the cyclohexane have sp3 hybridization.</span>
 
Benzene has a planar structure whereas cyclohexane has chair conformations.<span>
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5 0
2 years ago
Which of the following is a homogeneous mixture? a. Na(s) b. H2O(l) c. Cl2(g) d. NaCl(aq)
iVinArrow [24]

Answer:

H²0 is answer is H20 ok please

7 0
3 years ago
The table below shows the height of a ball x seconds after being kicked.
irga5000 [103]

Answer:

-16

81

19

Explanation:

8 0
2 years ago
Read 2 more answers
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