2 years ago

BRAINLIEST IF CORRECT

Chemistry

1 answer:

Tpy6a [65]2 years ago

6 0

Answer:

Explanation:

He should use these for airborne sounds

MDF Fiberboard.

Gypsum Board.

Plasterboard.

Mineral Wool.

He should avoid using

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Remember to balance the equations first

Semenov [28]

mol CO₂ = 9.6

mol N₂ = 4.8

mol O₂ = 0.8

mol H₂O = 8

<h3>Further explanation</h3>

Reaction

4C₃H₅O₉N₃ → 12CO₂ + 6N₂ + O₂ + 10H₂O

mol CO₂

$\tt \dfrac{12}{4}\times 3.2=9.6$

mol N₂

$\tt \dfrac{6}{4}\times 3.2=4.8$

mol O₂

$\tt \dfrac{1}{4}\times 3.2=0.8$

mol H₂O

$\tt \dfrac{10}{4}\times 3.2=8$

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3 years ago

Change the given word equation into balanced equation <br><br>Hydrogen+Chloride=Hydrogen chloride

nirvana33 [79]

Answer:

h2 +2cl -> 2hcl

Explanation:

h2 + cl -> HCl

h2 +2cl -> 2hcl

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3 years ago

Determine which pair of atoms has the greatest polarity.

nexus9112 [7]

According to the <span> chart represented above, I have determined the pair of atoms which has the greatest polarit and I am pretty sure that it is the first option from the scale :</span>A. Al-Si. I consider this to be correct due to their incredible difference <span>difference in electronegativity.
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2 years ago

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What type of energy does water gain as it sits in the sun?

shutvik [7]

Answer:

Heat Energy

Explanation:

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3 years ago

How many moles of potassium iodide (KI) are in 48.9 g of potassium iodide (KI) ? ____ moles

wel

Answer:

mass of kI = 74.55 Atomic mass

74.55 g ---> 1 mole

48.9 g --> ?

48.9 / 72

0.7 mole.

In one mole of kI --->

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2 years ago