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3 years ago

Elena makes the table below to determine the number of atoms of each element in the chemical formula 3(NH4)2SO4

Chemistry

2 answers:

Vikentia [17]3 years ago

6 0

Answer:

A) She should not have multiplied the sulfur atoms by the subscript 4.

Explanation:

frozen [14]3 years ago

5 0

Answer:

she should not have multiplied the sulfur atoms by the subscript 4

Explanation:

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Answer:

Ability to be bent = Malleability

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2 years ago

The compound Fe3CI is made of what?

sergeinik [125]

Answer:

nglos324 - fe3c. Iron carbide is an interstitial compound of iron and carbon with the composition Fe- 6.68 wt % Carbon. It is a brittle ceramic material and is produced in carbon steels or cast irons during pseudo-equilibrium cooling from above the eutectoid temperature (723 C).

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3 years ago

Pls help!!! for 100 points, please only answer if your actually going to help ! A kitten has a mass of 1582 g and accelerates at

lys-0071 [83]

Answer:

2689.4

Explanation:

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2 years ago

A teniss ball has more mass than a gold ball because it?

kakasveta [241]

Hello There,

I believe you stated your question wrong. This is not possible. A tennis ball can't have more mass than a gold ball.

If you MEANT to say:

A golf ball has more mass than a tennis ball because

then your answer would be:

It contains more matter

Best Of Luck,

- Kai -

6 0

3 years ago

When 27.50 liters of oxygen gas reacts with excess hydrogen gas at STP how many grams of water is produced?

telo118 [61]

<u>Answer: </u>The mass of water produced is 44.28 g

<u>Explanation:</u>

We are given:

Volume of oxygen gas = 27.50 L

At STP conditions:

22.4 L of volume is occupied by 1 mole of a substance

27.50 L of oxygen gas will be occupied by = $\frac{1mol}{22.4L}\times 27.50L=1.23mol$

The chemical equation for the formation of water follows:

$2H_2+O_2\rightarrow 2H_2O$

By the stoichiometry of the reaction:

If 1 mole of oxygen gas produces 2 moles of water

So, 1.23 moles of oxygen gas will produce = $\frac{2}{1}\times 1.23=2.46mol$ of water

The number of moles is defined as the ratio of the mass of a substance to its molar mass. The equation used is:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$ ......(1)

Molar mass of water = 18 g/mol

Plugging values in equation 1:

$\text{Mass of water}=(2.46mol\times 18g/mol)=44.28g$

Hence, the mass of water produced is 44.28 g

5 0

3 years ago