3 years ago

What does volcanic ash add to the environment?

1 answer:

7 0

Somethings that are beneficial is its good for plants, if it is very fine ash it is able to break down and quickly dissolve into the soil.

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What are the coefficients for the following reaction when it is properly balanced? ?potassium iodide +?lead (II) acetate lead (I

xeze [42]

Answer: none of the above

Explanation:

It should be 2,1,1,2 to give a balanced chemical reaction

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3 years ago

Which element is least likely to undergo a chemical reaction?

Trava [24]

Answer:

Helium

Explanation:

Helium is most likely to undergo a chemical reaction because

It has a complete electron shell, so it does not need any more electrons
Its electrons are closest to the nucleus, so it is extremely difficult to remove them

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3 years ago

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Please help, thanks!

Anastasy [175]

You need to use the formula--> P1V1= P2V2 (Boyles's law)

P1= 14 bar
V1= 312 mL
P2= ?
V2= 652 mL

now we plug the values into the formula.

(14 x 312) = (P2x 652)

P2= (14 x 312)/ 652= <span>6.70 bar</span>

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3 years ago

What is the atomic number and name of an element that has 15 protons in its nucleus?

just olya [345]

Answer:

phosphorus.

Explanation:

The atomic number of phosphorus is 15 so the protons will be 15.

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3 years ago

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