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satela [25.4K]
3 years ago
7

The level of mercury in a barometer falls as the air pressure falls.

Chemistry
1 answer:
stira [4]3 years ago
5 0

Answer:True

Explanation:

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<span>A. insoluble solids in water
</span><span>C. solids of different sizes</span>

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Demonstrate a net force of 50 N to the left. Use three different combinations of people to get the same net force. How many peop
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<u>Mendeleev </u><u>positioned elements in the periodic table in</u><u> increasing order </u><u>of their atomic numbers, such that </u><u>elements </u><u>having identical chemical properties and characteristics plunge into the </u><u>same group.</u>

What is Mendeleev's periodic table called?

  • In order to represent similarities and patterns in the behavior of elements, Mendeleev created the periodic table, which is an arrangement of elements in an increasing atomic mass order in tablet form.
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  • Mendeleev discovered that there were two elements with atomic weights between 65.2 and 75 because he found it very satisfying that the properties of the elements were more similar and closer to this level.
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Learn more about Mendeleev's periodic table

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3 0
2 years ago
As you have seen in this lab, the density of water is near 1 g/cm3. Anything with a density lower than this will float in water,
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The third answer is the one you want. You have to have an adjustable density. All other things being equal, if the tanks you use for holding just water when filled with water will let the sub sink, because the sub is made of a dense metal like iron or steel.

If on the other hand you fill these tanks with air, the net density will be below one and the sub will rise.
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