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omeli [17]
3 years ago
11

How many oxygen atoms are there in 5 molecules of Al2(SO4)?

Chemistry
1 answer:
timama [110]3 years ago
4 0

Answer:

There are two aluminum ions and three sulfate ions; or two aluminum, three sulfur, and twelve oxygen atoms.

Explanation:

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What is the % yield when 12g of Mg react with HCl to produce 0.2g of H2?
goblinko [34]

Answer:

The yield is 20 %.

Explanation:

Mg + 2 HCl → MgCl2 + H2

(12 g Mg) / (24.30506 g Mg/mol) x (1 mol H2 / 1 mol Mg) x (2.015894 g H2/mol) = 0.9953 g H2.

(0.2 g) / (0.9953 g) = 0.20 = 20% yield

5 0
2 years ago
Which step of desalination must be done before water is condensed and collected?
USPshnik [31]

the water is heated until it evaporates

6 0
2 years ago
What element has these characteristics MgX2, Very low density, Highly reactive, Diatomic
Kruka [31]
Copper has all those characteristics and even works on a Notatem scale.
4 0
3 years ago
Calculate the how many sodium atoms must react completely to give 33,6 dm³ hydro-
lions [1.4K]

To give 33.6 dm³ hydrogen gas at STP, 18.06 x 10²³ atoms of Na must react completely.

<h3>What is Mole concept ?</h3>

A mole is a unit of measurement used to measure the amount of any fundamental entity (atoms, molecules, ions) present in the substance.

As according to the given equation, 2 moles (ie 12.04 x 10²³ atoms) of Na-atoms produces 1 mole (22.4 ltr) of H₂-gas.

Hence, to produce 33.6 ltr (equivalent to 33.6 dm³) of H₂-gas produced by ;

   = 12.04 x 10²³ atoms of Na / 22.4 ltr of H₂-gas x 33.6 ltr

   = 18.06 x 10²³ atoms of Na

Hence, To give 33.6 dm³ hydrogen gas at STP, 18.06 x 10²³ atoms of Na must react completely.

Learn more about Mole concept here ;

brainly.com/question/20483253

#SPJ1

8 0
2 years ago
Apart from the formation of ethanol, You can't use alkenes direct hydration method to produce an alcohol where the OH group is a
emmainna [20.7K]
Wait a second...I am sorry I don't know the answer but I have something to tell you.
It is not necessary that in alcohols, OH should be at the end of a chain .

It can be anywhere in the chain..
8 0
3 years ago
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