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sdas [7]
3 years ago
15

Please help I will give brainliest.

Chemistry
1 answer:
iris [78.8K]3 years ago
8 0

Answer:

the second one looks like it so I picked the second one

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Chemistry, need answer ASAP!! 50 points and i'll mark brainliest if correct! ^w^
pishuonlain [190]

Answer:

615 g

Explanation:

In order to convert from moles of any given substance into grams, we have to use said substance's <em>molar mass</em>, as follows:

  • # moles * Molar mass = grams of substance.

Thus, we now <u>calculate the molar mass of beryllium iodide</u>, BeI₂, using the <em>molar masses of the elements</em>:

  • Molar Mass of BeI₂ = Molar Mass of Be + (Molar Mass of I)*2 = 262.821 g/mol

Finally we <u>calculate how many grams are there in 2.34 moles of BeI₂</u>:

  • 2.34 mol * 262.821 g/mol = 615 g
4 0
2 years ago
I NEED HELP WIT QUESTION THREE
mixas84 [53]

Answer: 2.00

Explanation:

2 rounded to the nearest hundredth is 2.00

your welcome :)

answers for all three:

1. 4.00

2. 16.04

3. 2.00

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2 years ago
How many protons are there in H2S ?
Vinvika [58]
16. Hope this helps!!
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3 years ago
Is air homogeneous or heterogeneous?
ivolga24 [154]

Answer:  yes, Air is a homogeneous mixture of the gaseous substances nitrogen, oxygen, and smaller amounts of other substances. Salt, sugar, and substances dissolve in water to form homogeneous mixtures. A homogeneous mixture in which there is both a solute and solvent present is also a solution

Explanation:

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