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MArishka [77]
3 years ago
10

Need help on number 14 please and thank u so much

Chemistry
1 answer:
mash [69]3 years ago
5 0

Answer:

gravity

Explanation:

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I'm giving 20 points! please it's for a friend not me
astra-53 [7]

Answer:

Three chemical elements: hydrogen, oxygen, and helium.

The difference between metals and metalloids is: metalloids have properties in between those of the metals and non-metals and are semiconductors.

The periodic table is organized by the elemts atomic number, it goes from the element with the lowest atomic number (which is hydrogen) to the element with the highest atomic number (oganesson)

Explanation:

Hope this helps :)

6 0
3 years ago
Blood ph is kept near a value of 7.3 - 7.5 because of
Ede4ka [16]

Answer:  Neutral Value

Explanation:  pH of the blood is maintained at 7.0 to 7.5that is neutral value.

This is because if the pH of the is lower than the maintained value then it will become acidic .

Acidic pH can cause the medical urgency known as acidosis leading to vomiting, diarrhea etc.

If the pH becomes higher, then the blood will become basic in nature and it can also leas to the death of the person.

That is why the pH of the blood is maintianed at neutral value of 7.0 to 7.5

5 0
3 years ago
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Rus_ich [418]

Answer:

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7 0
3 years ago
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A chemical reaction in which two or more substances undergo a chemical union to form a more complex substance is a _______ react
Georgia [21]
I believe the correct answer is B. Combination.
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natural rubber is white, but the one we see in cars is black, because it was combined with carbon. It is a physical or chemical
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Answer: chemical property

Explanation: This is a chemical property because it was combined with carbon, another molecule acting like an element. The answer to the question is chemical property. Hope this helps!

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