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3 years ago

Select all the correct images, select the two atomic models that belong to the same element.

Chemistry

1 answer:

Scrat [10]3 years ago

8 0

Check the circled atoms in the attached diagram

Explanation:

The circled options all belongs to the same elements. They are simply isotopes.

Since:

Red ball = protons

Yellow ball = neutron

Blue ball = electron

The protons are positively charged and with the neutrally charged neutrons they both occupy the vicinity of the nucleus of an atom.

Electrons moves round the nucleus in orbits.

Atoms of the same elements have the same number of protons.

The circled options all have two protons.

The atoms only differ in the number of neutrons which signifies that they are merely isotopes.

More descriptively, the atoms are Helium atoms.

learn more:

Isotope brainly.com/question/4551913

#learnwithBrainly

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Explanation:

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Given that,

Amount of moles of Cr2(SO3)2 (n) = ?

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For molar mass of Cr2(SO3)2, use the atomic masses:

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What volume (mL) of the sweetened tea described in Example 1 contains the same amount of sugar (mol) as 10 mL of the soft drink

S_A_V [24]

The question is incomplete, the complete question is:

What volume (mL) of the sweetened tea described in Example 3.14 contains the same amount of sugar (mol) as 10 mL of the soft drink in this example. The example is attached below.

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Explanation:

We first calculate the number of moles of soft drink in a volume of 10 mL

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$\text{Molarity of solution}=\frac{\text{Moles of solute}\times 1000}{\text{Volume of solution (mL)}}$ .....(1)

Taking the concentration of soft drink from the example be = 0.375 M

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