3 years ago

A solution that contains a small amount of salt in a large amount of water is said to be a -----solution?

1 answer:

5 0

It's a saline solution, commonly used in many ways, primarly in chemistry and medicine (i.e. in intravenous therapy, nasal lavage or in biological and chemical experiments), but also for cleaning new piercings or rinsing contact lenses.

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We have 548 grams of CaCl2. How many molecules of CaCl2 do we have? (The molar mass of CaCl2 is 110.98 g/mol)

nekit [7.7K]

Answer:

Try everything

2.97 x 10^24 molecules

3.66 x 10^28 molecules

9.1 x 10^22 molecules

4.37 x 10^22 molecules

Explanation:

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3 years ago

If a rock contains rounded grains of sediments, what can you tell about that rock?

Zielflug [23.3K]

Answer:

sedimentary rock

Explanation:

sediment + rock

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3 years ago

Explain why the following chemical equation represents a Lewis acid-base reaction. H+ + NH3 —>NH4+

lozanna [386]

Answer:

Due to an electron-pair acceptor and donor.

Explanations:

Lewis acid can be defined as an electron-pair acceptor. An example is Hydrogen ion(H+). This is because it is a proton and it distributes positive charge which means that it accepts electrons(negative charge).

Lewis base can be defined as an electron-pair donor. This is because it donates electrons to be accepted by the proton. An example is ammonia(NH3).

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3 years ago

1.which of the following correctly describes carbon, represented by c?

Gnoma [55]

1 is an element, 2 is an compound

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3 years ago

I don’t know it A is correct please tell me the right answer

Greeley [361]

I do believe the answer is A. Hope this helps.

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3 years ago

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