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harkovskaia [24]
3 years ago
11

A single atom found on the periodic table is know as an

Chemistry
1 answer:
adelina 88 [10]3 years ago
3 0

Answer:

Element

Explanation:

A chemical element is a substance that contains only one type of atom, which is the smallest particle of an element

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What is that the theoretical yield of aluminum oxide I if 3.20 mol of aluminum metal is exposed to 2.70 mole of oxygen
photoshop1234 [79]

Answer:

163.2g

Explanation:

First let us generate a balanced equation for the reaction. This is shown below:

4Al + 3O2 —> 2Al2O3

From the question given, were were told that 3.2moles of aluminium was exposed to 2.7moles of oxygen. Judging by this, oxygen is excess.

From the equation,

4moles of Al produced 2moles of Al2O3.

Therefore, 3.2moles of Al will produce = (3.2x2)/4 = 1.6mol of Al2O3.

Now, let us covert 1.6mol of Al2O3 to obtain the theoretical yield. This is illustrated below:

Mole of Al2O3 = 1.6mole

Molar Mass of Al2O3 = (27x2) + (16x3) = 54 + 48 =102g/mol

Mass of Al2O3 =?

Number of mole = Mass /Molar Mass

Mass = number of mole x molar Mass

Mass of Al2O3 = 1.6 x 102 = 163.2g

Therefore the theoretical of Al2O3 is 163.2g

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2. An element is all the way through,​
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?? Is that the whole question?
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Which carbon compound is soft, slippery, a decent electricity conductor, and bonded in a way that forms planes?
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Your answer is Graphite
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Answer:

H2O is a polar molecule

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Explanation:

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