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azamat
2 years ago
9

A substance made of one or more atoms of a single type is a/an

Chemistry
1 answer:
Mkey [24]2 years ago
5 0
I think the answer is a molecule
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What is a current?
Agata [3.3K]

is C a flow of electrons

Explanation:

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3 years ago
How many moles of aluminum are needed to make 9 moles of molecular hydrogen? Given the reaction: 2 Al + 6 HCl → 2 AlCl3 + 3H2
VMariaS [17]

Answer:

We need 6.0 moles of aluminium

Explanation:

Step 1: Data given

Number of moles of H2 = 9.0 moles

Step 2: The balanced equation

2 Al + 6 HCl → 2 AlCl3 + 3H2

Step 3: Calculate moles Al

For 2 moles Aluminium, we need 6 moles HCl to produce 2 moles AlCl3 and 3 moles H2

For 9.0 moles of H2 we need 2/3 * 9.0 = 6.0 moles of aluminium

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3 years ago
Please help! I really don’t understand it
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C. It makes sure there is a balance inside the body

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2 years ago
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P_{4}O_{10} + 6H_{2}O ---\ \textgreater \  4H_{3}PO_{4}
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3 years ago
What does the red line in the diagram below represent?
bekas [8.4K]

Answer:

The activation energy

Explanation:

The activation energy is the energy hump that lies between reactants and products. It is the energy barrier that reactants must cross before they are converted into products.

Based on the collision theory, only particles that possess the activation energy are able to collide in such a way that leads to reaction.

Collision of particles having an energy content less than the activation energy of the reaction merely leads to elastic collision between such particles.

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2 years ago
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