3 years ago

Plz answer #4 Best answer will get BRAINLIEST!!!

Chemistry

2 answers:

jek_recluse [69]3 years ago

5 0

Different types of soil??

kolezko [41]3 years ago

4 0

A ??????

B ??????

Hope this didn't help!!!

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How many molecules in 400g of acetic acid

ki77a [65]

Answer:chemical formula of acetic acid is or

so, molecular mass of acetic acid = 2 × atomic mass of C + 4 × atomic mass of H + 2 × atomic mass of O

= 2 × 12 + 4 × 1 + 2 × 16

= 24 + 4 + 32

= 60g/mol

given mass of acetic acid = 22g

so, no of moles of acetic acid = given mass/molecular mass

= 22/60 ≈ 0.367

so, number of moles of acetic acid is 0.367mol

number of molecules in 0.367 mol of acetic acid = 6.022 × 10²³ × 0.367

= 2.21 × 10²³

Explanation:

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3 years ago

Have you had the chance to watch a tree grow over a span of several years? Did you notice that the tree grew thicker and taller?

Kruka [31]

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All of the cells would be identical.

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3 years ago

Describe transfer RNA job.<br> pls thank you

Scorpion4ik [409]

Answer:

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3 years ago

If an element has two or more atoms with the same number of protons but different number of neutrons it is called what

Oksana_A [137]

It’s called an isotope which is an atom with the same number of protons but a different number of neutrons

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3 years ago

If 25.8 grams of BaO dissolve in enough water to make a 212-gram solution, what is the percent by mass of the solution?

Igoryamba

The correct answer is 12.2% BaO.

The solution is found by dividing the mass of the BaO, which is 25.8 grams, by the total mass of the solution, which is 212 grams, then multiplying it by 100 to get the percentage:
$\frac{25.8}{212}*(100) =12.2%$

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3 years ago