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Drupady [299]
3 years ago
5

Please help! BRAINLIEST to correct answer!!!!

Chemistry
1 answer:
ArbitrLikvidat [17]3 years ago
7 0

Answer:

<h3>Exothermic Process</h3>

Explanation:

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Free_Kalibri [48]
Haha i’m trying to do the same one i’ll make sure if i find out how too to get back to you!
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3 years ago
What is the mass of 0.251 moles of water? Using dimensional analysis show work
AVprozaik [17]

1 \text{ mol of H}_2 \text{O} \equiv 18 \text{ g} \implies 0.251  \text{ moles of H}_2 \text{O} \equiv 4.518 \text{ g}

3 0
3 years ago
How many moles of argon, Ar, are in 1.31×1024 Ar atoms?
ddd [48]

Answer:

2.18 mol Ar.

Explanation:

Hello there!

In this case, according to the definition of mole as the amount of particles of a given substance, it is possible to introduce the Avogadro's number to assert that 1 mole of any element contains 6.022x10²³ atoms; thus, the moles of Ar in the given amount of atoms turns out to be:

1.31x10^{24}Ar atoms*\frac{1molAr}{6.022x10^{23}atoms}\\\\=2.18molAr

Best regards!

5 0
2 years ago
the trunk of a certain tree is 50 cm thick. Each year it gets thicker by 1 cm. How thick will the tree trunk be in 50 years
Mama L [17]
100 centimeters thick

Starting thickness was 50 cm
1 cm every 50 years= 1x50
1x50=50
Old thickness + New thickness= 50 + 50 = 100 cm
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5 0
2 years ago
Why is carbon dioxide called a gas and not vapour?
Afina-wow [57]

Explanation:

CO2 is called as gas because it exist in single thermodynamics state i.e CO exist in gases state only at room temperature.

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2 years ago
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