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omeli [17]
3 years ago
10

I share a border with the United States.

Chemistry
1 answer:
patriot [66]3 years ago
3 0

Answer:

Mexico

Explanation:

In Central America and Mexico floods, earthquakes and volcanic eruptions have occurred one after another.

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An Isolated system could be best described as a _______________.
grandymaker [24]
Hello Mate!

Well, there are many definitions and descriptions of isolated systems, and here are some of them:

1. It can be a physical system which is located very very far from all other systems, so there is absolutely no interaction between them, thus making it isolated.

2. It can be a thermodynamic system with rigid walls, which prevents mass and energy to pass through.

I Hope my answer has come to your Help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead! :)

(Ps. Mark As Brainliest IF Helped!)

-TheOneAboveAll :D
5 0
4 years ago
How many days are in a solar year?
frez [133]
365 days.

Solar years is what we go by.

4 0
3 years ago
Read 2 more answers
If I have 13 g of C, how many moles of C do I have?
Triss [41]
C = Carbon

If you look in a periodic table and see the mass number for carbon. Its estimated around 12.

I believe it's between 1-2 moles.

All you have to do is 13/12 which will give yoy the estimated answer which is around 1.08 mole.
4 0
3 years ago
N2(g) + 3H2(g) →2NH3(g)
monitta

Answer:

2.5 moles of N₂ and 7.5 moles of H₂ entered the reaction

Explanation:

In reaction:

N₂(g) + 3 H₂(g) → 2 NH₃(g)

You can see that the stoichiometry of the reaction (that is, the relationship between the amount of reagents and products in a chemical reaction) requires the following amounts of reagents and are produced:

  • N₂: 1 mole
  • H₂: 3 moles
  • NH₃: 2 moles

The following three rules can apply:

  • If 2 moles of NH₃ are produced from 1 mole of N₂ by stoichiometry of the reaction, 5 moles of NH₃ from how many moles of N₂ are produced?

moles of N_{2} =\frac{5 moles of NH_{3} *1 mole of N_{2} }{2 moles of NH_{3}}

moles of N₂= 2.5

  • If 2 moles of NH₃ are produced from 3 moles of H₂ by stoichiometry of the reaction, 5 moles of NH₃ from how many moles of H₂ are produced?

moles of H_{2} =\frac{5 moles of NH_{3} *3 mole of H_{2} }{2 moles of NH_{3}}

moles of H₂= 7.5

<u><em>2.5 moles of N₂ and 7.5 moles of H₂ entered the reaction</em></u>

6 0
3 years ago
Which actions increase the strength of an electromagnet? 1-Increase the number of coils and increase the strength of the current
tigry1 [53]

Electromagnet is a type of magnet which is produced by passing electric current through a magnetic material such as iron. Here electric energy is converted to magnetic energy. The magnetic material is coiled with wire through which electric current is passed. Increasing the number of coils and increasing the strength of the current increases the strength of the electromagnet. However, the electromagnet loses its magnetic properties when the current flow is switched off.

(Answer) (1) Increase the number of coils and increase the strength of the current.

8 0
4 years ago
Read 2 more answers
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