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3 years ago

8

How can two atoms of the same chemical element be different?

1 answer:

suter [353]3 years ago

8 0

The answer is B as isotopes are different versions of the same chemical element containing the same amount of protons and electrons but different amounts of neutrons.

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Biologist group living things based on ____. Habitat Habitat Size Size Colors Colors Shared Characteristics

garik1379 [7]

Answer: i think it is Habitat but i am not 100%

Explanation:

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3 years ago

Consider a mystery compound having the formula MxTy. If the compound is not an acid, if it contains only two elements, and if M

valkas [14]

Answer:

d.) It is a binary molecular compound.

Explanation:

The compound in question has a formula $M{x}T_{y}$ . The compound is not acidic in nature and the element 'M' is not a metal. This shows that the compound does not contain any metal. Based on the definition of a binary molecular compound as a compound comprising elements that are not metals. Therefore, the compound is obviously a binary molecular compound.

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3 years ago

Read 2 more answers

The osmotic pressure exerted by a solution is equal to the molarity multiplied by the absolute temperature and the gas constant

enot [183]

Answer: $C=\frac{\pi}{R\times T}$

Explanation:-

Osmotic pressure is a colligative property which depends on the amount of solute added.

$\pi=CRT$

$\pi$ = osmotic pressure = 5.1 atm

C= concentration in Molarity

R= solution constant = 0.0821 Latm/Kmol

T= temperature = 312 K

$C=\frac{\pi}{R\times T}$

$C=\frac{5.1atm}{0.0821Latm/Kmol\times 312K}=0.2mol/L$

Thus the equation for calculating the molarity of this solution is $C=\frac{\pi}{R\times T}$

4 0

4 years ago

Given the balanced equation below, calculate the moles of aluminum that are needed to react completely with 13.2 moles of FeO?

irina [24]

The number of moles of aluminium that are needed to react completely with 13.2 moles of FeO is 8.8 moles

calculation

2Al + 3FeO → 3aFe +Al2O3

by use of of mole ratio of Al: FeO from equation above = 2:3 the moles of Al is therefore

= 13.2 x 2/3=8.8 moles of Al

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3 years ago

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mamaluj [8]

Select all that apply

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3 years ago