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Vadim26 [7]
3 years ago
14

Please help me I really don’t understand

Chemistry
1 answer:
Leokris [45]3 years ago
4 0
I dont understand life, for example, look at my username.

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What can you infer about particle's size?
gayaneshka [121]

Answer:

particle size analysis, particle size measurement, or simply particle sizing is the collective name of the technical procedures, or laboratory techniques which determines the size range, and/or the average, or mean size of the particles in a powder or liquid sample.

Explanation:

8 0
2 years ago
Predict the number of each atom needed to form a molecule of potassium Sulfide.
vladimir2022 [97]

Answer:

2.0 atoms of K and 1.0 atom of S are needed to form a molecule of potassium sulfide.

Explanation:

  • The potassium sulfide has the chemical formula <em>K₂S.</em>

∴ Every 1.0 molecule of K₂S composed of 2.0 atom of K and 1.0 atoms of S.

<u><em>So, 2.0 atoms of K and 1.0 atom of S are needed to form a molecule of potassium sulfide.</em></u>

8 0
3 years ago
True or false. An excited state is less stable than a ground state
vladimir2022 [97]

Answer: True!

Explanation: As electrons that are excited move between energy levels, they emit lots and lots of energy, in fact way more energy than ground state electrons (electrons that move within the same energy level) do, thus, making them more unstable.

3 0
3 years ago
The chemical symbol for sodium is
serg [7]
Sodium- Na
most active element- Fluorine
lightest element- Hydrogen
7 0
3 years ago
How do microwaves help heat frozen food?
hodyreva [135]

Answer:

Microwaves cook food by heating the liquid water it contains. Even frozen food contains some liquid water, at least on the outside surface exposed to warm air on the way from the freezer to the oven.

Explanation:

mark as brainliest pls!!!

6 0
3 years ago
Read 2 more answers
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