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3 years ago

What is the law of multiple proportions?

Chemistry

1 answer:

quester [9]3 years ago

6 0

Answer:

I think

(d) All compounds contain the same elements in the same properties

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What is the percent nitrogen in NaN*O_{3} ?

Naily [24]

I am not 100% this is right but

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2 years ago

The coolant in automobiles is often a 50/50 % by volume mixture of ethylene glycol, C2H6O2, and water. At 20°C, the density of e

Misha Larkins [42]

Explanation:

Let the volume of the solution be 100 ml.

As the volume of glycol = 50 = volume of water

Hence, the number of moles of glycol = $\frac{mass}{molar mass}$

= $\frac{density \times volume}{molar mass}$

= $\frac{1.1088 \times 50}{62 g/mol}$

= 0.894 mol

Hence, number of moles of water = $\frac{50 \times 0.998}{18}$

= 2.77

As glycol is dissolved in water.

So, the molality = $0.894 \times \frac{1000}{49.92}$

= 17.9

Therefore, the expected freezing point = $-1.86 \times 17.9$

= $-33.31^{o}C$

Thus, we can conclude that the expected freezing point is $-33.31^{o}C$ .

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3 years ago

Nonmetal halogen family atmoic mass 35

Anettt [7]

chlorine has the atomic mass of 35.5 and is a non metal in the halogen family

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3 years ago

How many significant figures are in the number 020.310

True [87]

Answer:

Explanation:

Sorry, don't have one

<u><em>Hope this helps and I get brainliest <3</em></u>

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3 years ago

What is the covalent bond for Hydrogen + Chlorine (HCI)

kolbaska11 [484]

Answer:

HCl, also known as hydrochloric acid, has a covalent bond. The hydrogen (H) atom shares an electron with the chlorine (Cl) to form the bond.

Explanation:

Consequently, the bonding electrons in hydrogen chloride are shared unequally in a polar covalent bond. The molecule is represented by the conventional Lewis structure, even though the shared electron pair is associated to a larger extent with chlorine than with hydrogen.

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3 years ago