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Rufina [12.5K]
2 years ago
10

PLEASE BE FAST

Chemistry
1 answer:
Reil [10]2 years ago
5 0

Answer:

true is true bro 1 is false and athore is true

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How many moles of PbCl2 are produced<br> if 14 moles of AIC13 are consumed?
swat32

Answer:

14 moles AlCl3 x 3 moles PbCl2/2 moles AlCl3 = 21 moles of Pb(NO3)2

Explanation:

Using dimensional analysis and the mole ratios from the balanced equation, we can calculate moles of PbCl2/2 formed from 14 moles of AlCl3...

I hope this helps and if I am wrong I am sorry but i am positive that your answer.

5 0
3 years ago
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What is the ROUNDED atomic number for this elements?
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Sodium/Atomic number

11

Gold/Atomic number

79
Potassium/Atomic number

19

Silicon/Atomic number

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8 0
3 years ago
Calculate the vapor pressure at 25°C of a solution containing 55.3 g ethylene glycol (HOCH2CH2OH) and 285.2 g water. The vapor p
Snezhnost [94]

Answer:

Vapor pressure of solution = 23.9 Torr

Explanation:

Let's apply the colligative poperty of vapor pressure to solve this:

ΔP = P° . Xm

ΔP = Vapor pressure of pure solvent - Vapor pressure of solution

We have solvent and solute mass, so let's find out the moles of each.

55.3 g / 62 g/mol = 0.89 moles

285.2 g / 18 g/mol = 15.84 moles

Let's determine the mole fraction of ethylene glycol.

Mole fraction = Moles of ethylene glyco / Total moles

0.89 moles / (0.89 + 15.84) = 0.053

25.3 Torr - Vapor pressure of solution = 25.3 Torr . 0.053

Vapor pressure of solution = 25.3 Torr . 0.053 - 25.3 Torr

Vapor pressure of solution = 23.9 Torr

7 0
3 years ago
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When bonds between atoms are broken or formed, what is the outcome?
LuckyWell [14K]
Two or more atoms<span> may </span>bond<span> with each other to form a molecule. When two hydrogens and an oxygen share electrons via covalent </span>bonds<span>, a water molecule is formed. Chemical reactions </span>occur<span> when two or more </span>atoms bond<span> together to form molecules or when bonded </span>atoms are broken<span> apart.</span>
8 0
3 years ago
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A substance that gives away, or donate hydrogen ions when put into a solution is said to be a -------- while a substance that ac
Ivenika [448]
Gives away hydrogen ion Is an acid...while the one that accepts is a base
7 0
3 years ago
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