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mixas84 [53]
3 years ago
12

!!!!HURRY!!!! What reaction is endothermic?

Chemistry
1 answer:
Alex3 years ago
4 0

Answer:

The reaction in which heat is absorbed from the surrounding is called endothermic reaction.

so

I think it's answer is 2nd option.

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Write the chemical symbol for three different atoms or atomic cations with 22 electrons
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Explanation:

To write the chemical symbol for an atom or cation with 22 electrons, we must understand some few things about an atom.

An atom is made up of positively charged paticles called protons which are located in the nucleus. The neutrons do not have any charges and are they reside together in the nucleus with the protons.

Electrons are negatively charged particles which orbits the nucleus.

Titanium in its neutral state is the 22nd element on the periodic table and it has 22 electrons.

Vanadium is the the 23rd element on the periodic table. If it loses an electron, it becomes positively charged and it is a cation.

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The symbols are:

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