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4 years ago

Which of the following elements has the greatest molar mass? Xenon Bismuth Rhodium Antimony

Chemistry

1 answer:

Zarrin [17]4 years ago

8 0

Answer:

Bismuth

Explanation:

In order to do this problem, we must use a periodic table. The molar mass is numerically equivalent to the atomic mass, which is provided for each element on the periodic table.

Xenon (Xe) has an atomic mass of 131.29 amu, or 131.29 g/mol.

Bismuth (Bi) has an atomic mass of 208.98 amu, or 208.98 g/mol.

Rhodium (Rh) has an atomic mass of 102.91 amu, or 102.91 g/mol.

Antimony (Sb) has an atomic mass of 121.76 amu, or 121.76 g/mol.

Thus, the answer is Bismuth because 208.98 is the largest.

Hope this helps!

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When the reaction shown is correctly balanced, the coefficients are: kclo3 → kcl + o2?

notka56 [123]

From the balanced equation 2KClO3 → 2KCl + 3O2, the coefficients are the following:
coefficient 2 in front of potassium chlorate KClO3
coefficient 2 in front of potassium chloride KCl
coefficient 3 in front of oxygen molecule O2

We got this balanced equation by identifying the number of atoms of each element that we have in the given equation KClO3 → KCl + O2.
Looking at the subscripts of each atom on the reactant side and on the product side, we have
KClO3 → KCl + O2
   K=1 K=1
Cl=1 Cl=1
O=3 O=2

We can see that the oxygens are not balanced. We add a coefficient 2 to the 3 oxygen atoms on the left side and another coefficient 3 to the 2 oxygen
atoms on the right side to balance the oxygens:
2KClO3 → KCl + 3O2
The coefficient 2 in front of potassium chlorate KClO3 multiplied by the subscript 3 of the oxygen atoms on the left side indicates 6 oxygen atoms just as the coefficient 3 multiplied by the subscript 2 on the right side indicates 6 oxygen atoms.

The number of potassium K atoms and chloride Cl atoms have changed as well:
2KClO3 → KCl + 3O2
   K=2 K=1
   Cl=2 Cl=1
    O=6 O=6

We now have two potassium K atoms and two chloride Cl atoms on the reactant side, so we add a coefficient 2 to the potassium chloride KCl on the product side:
2KClO3 → 2KCl + 3O2, which is our final balanced equation.
K=2 K=2
Cl=2 Cl=2
O=6 O=6
The potassium, chlorine, and oxygen atoms are now balanced.

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3 years ago

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Hi! Can someone help me with this???

nikklg [1K]

Hey there,

I hope this answer solves your doubt.

Step-by-step Explanation:-

The question is asking if the bonds between Carbon and Chlorine in CCl4 will be single, double or triple bonds.

(The structure of CCl4 is attached as picture. Check it)

As per image, the structure consists of Single bonds. It is 4 single bonds.

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2 years ago

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seropon [69]

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3 years ago

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masha68 [24]

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Explanation:

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KiRa [710]

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Explanation:

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