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Yuki888 [10]
3 years ago
15

Will mark brainliest if correct

Chemistry
1 answer:
AURORKA [14]3 years ago
7 0

Answer:

filtration and chromatography

Explanation:

I hope this will help you :-)

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The blank <br> and the blank <br> of atoms are the same on both sides of a chemical equation.
tester [92]

Answer:

Every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. Therefore, there must be the same number of atoms of each element on each side of a chemical equation.

Explanation:

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2 years ago
What happens when nitrogen fills its valence shell?
Sauron [17]
The right answer is D. three electrons are gained, creating N-3

Nitrogen has 5 electrons in it's valence shell and octet rule states that the valence shell must have 8 electrons. To satisfy that, Nitrogen gains 3 electrons that are negatively charged.Therefore, it gets a negative charge.




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3 years ago
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What are some of the main ways to add energy to a reaction? plzzz help
Tresset [83]

Answer:

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4 0
2 years ago
Given 50g of sodium how many moles do you have? ​
Anastaziya [24]

Answer:

Amount of Na = 2.17moles

Explanation:

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3 years ago
What is the relationship between the internal energy of a substance and its particle movement?
ss7ja [257]

Answer: The closeness, arrangement and motion of the particles in a substance change when it changes state. Materials are a store of internal energy , due to the motion of particles and the chemical bonds between them. When a substance is heated, its internal energy increases: the movement of its particles increases.

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