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eimsori [14]
3 years ago
5

Fill in the blank to complete each statement.

Chemistry
1 answer:
son4ous [18]3 years ago
7 0

Answer:

5.physical change

6.chemical change

7.physical change

8.conservation of mass

9.thermal energy

10.physical change

I honeslty dont know if this is right

explanation:

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since an element always has a different number of protons, the mass can indicate how many neutrons are in an isotope
elena-s [515]

Answer:

The number of protons is equal to the mass number of the element. Since an element always has a different number of protons, the mass can indicate how many neutrons are in an isotope. Atoms of the same element can have a different number of neutrons. There are three naturally-occurring isotopes of carbon.

Explanation:

8 0
2 years ago
I’ll give 5 stars and Brainliest plus this is 20 points lol
Daniel [21]

Answer:

I think is b

Explanation:

4 0
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Name the organic compound: CH≡CH
Alexandra [31]

Answer:

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3 years ago
What makes scientists think that arctic areas were once warm?
kogti [31]

Answer:well the ice preserves the wooly mammoths

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3 0
2 years ago
Could you separate the sodium from the chlorine by crushing the salt crystals
Zigmanuir [339]
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The distinction is made in the fact that the sodium and chlorine atoms are bonded chemically, while the crushing of the salt is a physical change. A physical change is one that does not have the ability to change the identity of the substance. Such changes include crushing, boiling, melting. In order to separate the chlorine and sodium atoms, you must make them undergo a chemical change, for example add the salt to sulfuric acid and make it react.
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