What is chemical reaction

2 answers:

6 0

a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction.

beks73 [17]4 years ago

4 0

A Chemical reaction is a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

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HELP!<br><br> How many kernel electrons are in Na+1??

Oksana_A [137]

Answer:

So, sodium's 11 electrons are arranged this way: 2 electrons in the first "shell", 8 electrons in the second "shell"; and 1 electron (the valence electron) in the third "shell".

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3 0

3 years ago

4.0 mol Na2S reacts with 5.0 mol

Bumek [7]

The number of moles of $Na_2SO_4$ form from 5.0 moles $Na_2S$ is 5 moles.