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Nikolay [14]
1 year ago
9

Which

Chemistry
1 answer:
ELEN [110]1 year ago
6 0

Answer:

D

Explanation:

Well it clearly had two hydrogens and one oxygen hence H2O,, and valence electrons are shared between the the atoms not transferred which makes it an covalent bond. As for the polar part, I'm not sure how to explain it well, but I has something to do with partially negative and positive charged atoms.

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WHEN I SAY I NEED HELP ASAP !!!
sweet [91]

Answer:

monoxide

dioxide

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4 0
3 years ago
The density of concentrated ammonia, which is 28.0% w/w nh3, is 0.899 g/ml. what volume of this reagent should be diluted to 1.0
vlada-n [284]

Answer: 2.4 ml

Solution :

Molar mass of NH_3 = 17 g/mole

Given,: 28% w/w of NH_3 solution means 28 g of ammonia in 100 g of solution.

Mass of solution = 100 g

Now we have to calculate the volume of solution.

Volume=\frac{Mass}{Density}=\frac{100g}{0.899g/ml}=111.2ml  

Molarity : It is defined as the number of moles of solute present in one liter of solution.

Molarity=\frac{n\times 1000}{V_s}

where,

n = moles of solute NH_3=\frac{\text {given mass}}{\text {molar mass}}=\frac{28}{17}=1.65moles

V_s = volume of solution in liter = 0.11 L

Now put all the given values in the formula of molarity, we get

Molarity=\frac{1.65moles}{0.11L}=15mole/L

Using molarity equation:

M_1V_1=M_2V_2

15\times V_1=0.036\times 1.0\times 10^{3}

V_1=2.4ml

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3 years ago
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crimeas [40]

Answer:

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Explanation:

Hope it helps UvU

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2 years ago
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