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Makovka662 [10]
2 years ago
7

a burning candle wax reacts with oxygen. after a glass jar is placed over it, the candle goes out. what is the limiting reactant

?
Chemistry
2 answers:
trapecia [35]2 years ago
5 0

Answer:

The Oxygen

Explanation:

When fire is covered, it goes out due to the lack of oxygen to maintain itself.

USPshnik [31]2 years ago
4 0

The limiting reactant in the experiment of the burning candle is oxygen.

<h3>What is a limiting reactant?</h3>

A limiting reactant is a reactant which determines the amount of product that ca be formed in a given reaction.

The limiting reactant is always used up in a reaction, after which the reaction stops.

In the experiment of the burning candle, covering the candle with the glass prevents more oxygen from taking part in the reaction.

Therefore, the limiting reactant is oxygen.

Learn more about limiting reactant at: brainly.com/question/14225536

#SPJ11

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The molecular weight of a gas that has a density of 5.75 g/l at stp is __________ g/mol.
Ira Lisetskai [31]

Answer : The molecular weight of a gas is, 128.9 g/mole

Explanation : Given,

Density of a gas = 5.75 g/L

First we have to calculate the moles of gas.

At STP,

As, 22.4 liter volume of gas present in 1 mole of gas

So, 1 liter volume of gas present in \frac{1}{22.4}=0.0446 mole of gas

Now we have to calculate the molecular weight of a gas.

Formula used :

\text{Moles of gas}=\frac{\text{Mass of a gas}}{\text{Molecular weight of a gas}}

Now put all the given values in this formula, we get the molecular weight of a gas.

0.0446mole=\frac{5.75g}{\text{Molecular weight of a gas}}

\text{Molecular weight of a gas}=128.9g/mole

Therefore, the molecular weight of a gas is, 128.9 g/mole

8 0
3 years ago
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The electrical charge of the nucleus is determined by:
elixir [45]
I think it’s electron:)
7 0
2 years ago
Which force controls the size of an atomic nucleus?.
klemol [59]

Answer:

strong nuclear force

Explanation:

1, a force that acts on charged particles

2, a force that holds atomic nuclei together

3, gravity, weak nuclear, electromagnetic, strong nuclear

4, strong nuclear force

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17. A balloon contains 4.50 X 1022 atoms of helium gas. Calculate the mass of helium in<br> grams.
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Answer:

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Explanation:

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we divide 12.1/22.4=0.54 moles

we multiply the number of moles with the molecular mass 0.54x2=1.08g

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3 years ago
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How do submarine volcanoes affect autotrophic bacteria?
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These bacteria are considered chemosynthetic, meaning they produce food from chemical reactions usually involving carbon dioxide, oxygen, or hydrogen

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