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Serga [27]
3 years ago
6

The three states of matter are solid, liquid, and gas. true or false

Chemistry
1 answer:
maria [59]3 years ago
3 0
That is True XD
Hope that  helps :D
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For a reaction system at equlibrium, le chateliers principle can be used to predict the
Gelneren [198K]

According to Le Chatelier's principle, adding additional reactant to a system will shift the equilibrium to the right, towards the side of the products. ... By Le Chatelier's principle, we can predict that the amount of methanol will increase, thereby decreasing the total change in CO.

6 0
3 years ago
3Fe + 4H2O Fe3O4 + 4H2
aalyn [17]
<span>These are five questions with its five answers.
</span><span>
</span><span>
</span><span>First, we have to explain main question.
</span>
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</span><span>The statement provides the chemical equation for the reaction of Fe with water to produce iron(III) oxide and hydrogen.
</span>
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</span><span>Fe3O4 is a weird chemical formula. It belongs to the product named oxoiron.
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<span /><span /><span>
Next, I have to tell how you must interpret the question. The five questions are based on the complete reaction of the same number of moles as the coefficients indicated in the chemical equation.
</span><span />

<span>Those coefficients are 3 for Fe, 4 for H₂O, 1 for Fe₃O₄ and 4 for H₂.


With that understood, let's work every question.


1) How many molecules of H₂ are produced?


Answer: 4 moles of molecules.

</span><span>Justification:
</span>

<span /><span /><span>This is, the number of moles of H₂ produced is given by the coefficient indicated in the chemical equation.
</span><span />

<span>2) How many oxygen atoms are required?
</span><span />

<span>Answer: 4.

</span><span>This is, the atoms of oxygen are supplied in the molecules of water. Since the coeffcient of water is 4, and each molecule o fwater has 1 atom of oxygen, 4 moles of water contain 4 moles of atoms of oxygen.
</span>
<span /><span /><span>
3) How many moles of Fe₃O₄ are formed?
</span><span />

<span>Answer: 1.
</span><span />

<span>Justification: the coefficient of for formula Fe₃O₄ is 1, indicating that the theoretical yield is 1 mol of molecules.
</span><span />

<span>4) What is the mole ratio of Fe to H₂O?
</span><span />

<span>Answer: 3:4
</span><span />

<span>Justification:
</span><span>
</span><span>
</span><span>The ratio is the quotient of the two coefficients: the coefficient of the Fe divided by the coefficient of the H₂O.
</span>
<span /><span /><span>
5) How many hydrogen atoms are involved in this reaction?
</span><span />

<span>Answer: 8 moles of hydrogen atoms.
</span><span />

<span>Justification: as you can see each molecule of H₂O has 2 atoms of hydrogen, then 4 moles of molecules of H₂O have 8 moles of atoms of hydrogen. And of course the same number are in the produt: 4 moles of H₂ contain 8 moles of atomos of hydrogen
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</span><span>
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3 0
3 years ago
Read 2 more answers
Can someone please help me with this, I’ll give Brainly!
Art [367]

Answer:

Explanation:

See attached table.  

Note that:

1 mole = 6.02x10^23

Molar mass is grams/mole.  For the elements, the atomic mass is the same number as molar mass, just expressed as grams/mole.

5 0
3 years ago
Which of these things would you expect to have cells with both mitochondria
Allushta [10]

Answer:

D. Grass​

Explanation:

Every living organism must contain one or more cells to be considered "living". Each cell, however, contains certain structures that perform specific roles called ORGANELLES. These organelles are of different types and hence, perform different tasks. For example, mitochondria is the power house of a cell i.e. site of energy production, and hence, is found in every eukaryotic cell.

On the other hand, chloroplast is an organelle designed to perform photosynthesis, which only occurs in plant cells. Since only plant cells can undergo photosynthesis, only plant cells can contain chloroplast. Hence, according to this question, GRASS as a type of plant is an organism that will contain both mitochondria and chloroplast in its cells.

6 0
3 years ago
What is happening in the East African Rift Zone?
nadezda [96]

Plate is in the process of splitting into two tectonic plates

A) The techtonic plates are moving apart


7 0
3 years ago
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