Why is it necessary to include units when reporting scientific measurements?

Without units, the results of your measurement would be unclear and it would be hard to know what each seperate measurement is telling you.

Answer/ Explanation: you always want to keep track of your units especially during conversions because if you’re measuring liquids and you end up with meters for your final conversion, somethings wrong. Also, it’s important to show what you’re measuring. If you just answer 5.34 and leave out the units, no one knows what’s you measured. Dogs? Trees? Centimetres?

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-

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