2 years ago

How are the isotopes of a particular element alike?

1 answer:

6 0

The isotopes of a particular elements means that every element has there own isotopes like H has three isotopes protium, dutrium,tritium. like that cl has also thier own isotopes.

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What does a balanced equation allows you to determine

Allushta [10]

It allows you to determine the relation between the reactants and the products.

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3 years ago

LINKING IN<br> TECHNICAL OBJECTS<br> 1 a) What is linking?

d1i1m1o1n [39]

Answer:

A link is a fastening unit that attaches two parts of an object together

Different types of links have different characteristics

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2 years ago

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Which intermolecular force would affect the boiling point the least?

Maksim231197 [3]

Answer:

I'm pretty sure its h bonding. however I could very welp see it being Van der Waals

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2 years ago

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In the presence of excess oxygen, methane gas burns in a constant-pressure system to yield carbon dioxide and water: CH4 (g) 2O2

Degger [83]

Answer:

The energy released will be -94.56 kJ or -94.6 kJ.

Explanation:

The molar mass of methane is 16g/mol

The given reaction is:

$CH_{4}(g) + 2O_{2} (g) --> CO_{2} (g)+ 2H_{2}O(l)$

the enthalpy of reaction is given as ΔH = -890.0 kJ

This means that when one mole of methane undergoes combustion it gives this much of energy.

Now as given that the amount of methane combusted = 1.70g

The energy released will be:

$=\frac{energy released by one moleXgiven mass}{molarmass} =\frac{-890X1.7}{16}= -94.56 kJ$

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3 years ago

Hey sample of helium occupies 235 mL at 788 tour and 25°C. If the sample is condensed into a 0.115 L flask what will be the new

7nadin3 [17]

the system is in constant temperature

so it follows Boyle's law

i.e.P1V1=P2P2

where P1=initial pressure=788 tour

P2=final pressure= ?

V1=initial volume=235 ml

V2=final volume=0.115 ml

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3 years ago