3 years ago

How does the radius of the central atom affect the boiling points of Group 16 halides?

Chemistry

1 answer:

Taya2010 [7]3 years ago

6 0

I don’t really know but hope you figure it out

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If 3.89 × 1024 atoms of a noble gas is collected and it has a mass of of 848 grams, this element is most likely a. He b. Ne c. A

bearhunter [10]

Answer:

Xenon

Explanation:

Avogadro’s number represent the number of the constituent particles which are present in one mole of the substance. It is named after scientist Amedeo Avogadro and is denoted by $N_0$ .

Avogadro constant:-

$N_a=6.023\times 10^{23}$

Let the molar mass of the element is x g/mol

So,

$6.023\times 10^{23}$ atoms have a mass of x g

Also,

$3.89\times 10^{24}$ atoms have a mass of $\frac{x}{6.023\times 10^{23}}\times 3.89\times 10^{24}$ g

This mass is equal to 848 g

So,

$\frac{x}{6.023\times 10^{23}}\times 3.89\times 10^{24}=848$

x= 131.3 g/mol

This mass correspond to xenon.

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What is the charge of the nickel ion in Ni(CIO3)3 if chlorate, ClO3-, has a charge of<br> 1- ?*

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Answer:

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Hydrogen's sole electron occupies the 1s orbital but can be excited to the 4p orbital. List all the orbitals this electron might

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4p, 3d, 3p, 3s, 2p, 2s and 1s orbitals may be occupied during de-excitation.<span />

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Who was the first person to describe a chemical reaction as the recombination of atoms?

Cerrena [4.2K]

Niels Bohr is the first person to describe a chemical reaction as the combination of atoms.

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Determine if each salt will form a solution that is acidic, basic, or ph-neutral.

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