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LenKa [72]
3 years ago
13

How did Thomson show that cathode rays are different from light?

Chemistry
1 answer:
Flura [38]3 years ago
5 0

Answer:

They had a negative charge

Explanation:

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Decanitrogen is molecular

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Why is it important to use standard measurements and units in science
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Unit' is the word used to describe how something is measured. When researching a question in science, we collect data, interpret it, and share the results with other scientists. A common measurement system allows us to make direct comparisons instead of having to know things like how much a certain animal weighs.

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How does the composition of the cell membrane help regulate the movement of substances into and out of the cell?
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Composed of a phospholipid bilayer with embedded proteins, the plasma membrane is selectively permeable to ions and organic molecules and regulates the movement of substances in and out of cells. The membrane also maintains the cell potential.

Explanation:

(see above)

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3 years ago
When metal atoms combine chemically with atoms of other elements, what do they usually do?
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Answer:

Maybe I know too much chemistry but how the metals (and the non-metals) react depends on where they are in the Periodic Table. The metals in groups I and II over on the far left side are explosively reactive and loose electrons and form ionic bonds. Examples: Na+1 has lost 1 electron and Li+2 has lost 2 electrons. The metals in the higher groups are more confusing but most of them share outer shell electrons and form covalent bonds. Examples: Fe2O3 (rust) where Iron shares 2X3 electrons with Oxygen which shares 3X2 electrons. Confused enough? :-)

The answer you'll be expected to give depends on the subject of the chapter you're studying. If you're studying covalent bonds, then the answer will probably be "form covalent bonds". If you're studying ionic bonds, then the answer will be "lose electrons".

Explanation:

This may not be the answer... I'm sorry if it's not

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How is pressure affected as depth increases?
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pressure increases as depth increases.

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