3 years ago

A teacher makes the following statement.

Chemistry

2 answers:

Sergeu [11.5K]3 years ago

8 0

The teacher is mostly talking about Gasoline

Ann [662]3 years ago

7 0

The teacher is talking about evaporation of a mixture. You can tell because she mentions that each part of gasoline, a mixture, has a different melting point.

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vfiekz [6]

Al2(SO4)3 would be the formula.

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katrin2010 [14]

The symbol $P$ is for phosphorus having atomic number 15. That means it has $15 protons and 15 electrons$ in its neutral state.

The given symbol $P^{3-}$ has a -3 charge that means it has gained 3 electrons so, the number of electrons in the $P^{3-}$ is: $15+3 = 18$ . The number of protons will remain same that is the number of protons = 15.

So, the ion $P^{3-}$ has $15 protons and 18 electrons$ that gives $15-18=-3$ charge on the $P^{3-}$ ion.

So, the answer is $15 , 18$ .

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3 years ago

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irakobra [83]

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Explanation:

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How can the requirements of Na (sodium) solve the requirements of Cl (chloride) instability achievement?

Paul [167]

Na releases 1 electron to be stable

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2 years ago

What is a characteristic that can be observed or measured without changing the chemical makeup of a substance? *

olga55 [171]

The correct answer is B

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