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777dan777 [17]
3 years ago
7

A train travels 300 miles in 6 hours what is the trains average speed

Chemistry
2 answers:
Vladimir [108]3 years ago
6 0

Answer:

50 miles

Explanation:

Anna007 [38]3 years ago
4 0

Answer:

The average speed per hour is 50 miles

Explanation:

6x 50= 300

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Two posssible lewis structures for the molecule ch2s are given. determine the formal charge on each atom in both structures
jok3333 [9.3K]

The formal charge on each atom can be known by counting up the number of valence electrons that is present on each atom.

<h3>What is Lewis structure?</h3>

The term Lewis structure is the representation of a compound using its symbols and showing the valence electrons as dots. This question is incomplete as the Lewis structures were not shown.

If it is shown, we can know the formal charge on each atom by counting up the number of valence electrons that is present on each atom.

Learn more about Lewis structure: brainly.com/question/4144781

8 0
2 years ago
A pharmacist has a 12% solution of boric acid and a 20% solution of boric acid. How much of each must he use to make 80 grams of
Iteru [2.4K]

Answer:

  • <u><em>He must use 50g of the 12% solution and 30 g of the 20% solution.</em></u>

<u><em></em></u>

Explanation:

Call x the amount of <em>12% boric acid </em>solution to be used.

  • The content of acid of that is: 0.12x

Since he wants to make <em>80 grams</em> of solution, the amount of <em>20% boric acid</em> solution to be used is 80 - x.

  • The content of acid of that is{ 0.20(80 - x).

The final solution is <em>15% </em>concentrated.

  • The content of boric acid of that is 0.15 × 80 g.

Now you have can write your equation:

         0.12x+0.20(80-x)=0.15\times 80

Solve:

           0.12x + 16 - 0.20x=12\\\\-0.08x=12-16\\\\0.08x=4\\\\x=4/0.08\\\\x=50

That is 50 grams of the 12% solution of boric acid.

Calculate the amount of the 20% solution of boric acid:

         80-x=80-50=30

That is 30 grams.

Then, he must use 50g of the 12% solution and 30 g of the 20% solution.

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I like rain. Clouds must be condensing at 100% humidity, the pressure must be low, and the temperature must be above 0 degrees.

Explanation:

Hope this helps!

3 0
2 years ago
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Weather ionic or covalent, what does bonding always involve?
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Answer: Bonding always involve a pair of electrons and atoms and are shared between two non metals.

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3 years ago
What is neon: metal,non-metal,or metalloid?
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Neon is noble gas. It is not a metal, or a metalloid. Neon is a non-metal.
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