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2 years ago

Identify among the following as

Chemistry

1 answer:

Paul [167]2 years ago

5 0

Answer:

Cation-They have positive charge and are also called basic radical

Anion-They have negative charge and are also called acid radical

Radical-A radical is an atom of an element or a group of different elements that behaves as a single unit with a positive or negative charge.

Molecule-A molecule is the smallest particle of a pure substance which has independent existence

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1.25 cm is the same distance as ?<br> 12.5 Km<br> 12.5 mm<br> 12.5 dm<br> 12.5 m

pogonyaev

Answer:

12.5mm

Explanation:

1cm = 10mm

so you need to multiply the 1.25 by 10 to get it in mm.

6 0

3 years ago

How do we determine the number of electrons?

Umnica [9.8K]

Assuming it has no electrical charge, your electron count would be equal to the atomic number.

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2 years ago

Calculate the molarity of the solution formed when 0.72 moles of CaBr2 is dissolved in 1.50 L water.

xxTIMURxx [149]

Answer:

The molarity of the formed CaBr2 solution is 0.48 M

Explanation:

Step 1: Data given

Number of moles CaBr2 = 0.72 moles

Volume of water = 1.50 L

Step 2: Calculate the molarity of the solution

Molarity of CaBr2 solution = moles CaBr2 / volume water

Molarity of CaBr2 solution = 0.72 moles / 1.50 L

Molarity of CaBr2 solution = 0.48 mol / = 0.48 M

The molarity of the formed CaBr2 solution is 0.48 M

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2 years ago

Why is it important for scientists to use the scientific method?

shtirl [24]

I believe the answer is A

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2 years ago

At which point does a planet move most slowly in its orbit , at aphelion or perihelion

SVEN [57.7K]

Answer:

aphelion

Explanation:

A planet moves with constantly changing speed as it moves about its orbit. The fastest a planet moves is at perihelion (closest) and the slowest is at aphelion (farthest).

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1 year ago