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11.02.2020 •
Chemistry
What is the percent composition of potassium in KNO3
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Ответ:
38.6%
Explanation:
Molar mass of KNO3 is
=39+14+(16*3)
=53+48
=101 g/mol
Now
Percentage composition of potassium in KNO3 is=(atomic mass of K*no. of atoms)/molar mass of KNO3 *100%
%age composition of K= (39*1)/101 *100%
=0.386*100%
=38.6%
Ответ:
water
For many centuries, it was considered that there were only three states of matter: solid, liquid and gas (the three that are present and stable in our world). And water is the substance that best represents them, because it is the only one that exists naturally in the three states.
Explanation: Matter can exist in one of three main states: solid, liquid, or gas.
Solid matter is composed of tightly packed particles. ...
Liquid matter is made of more loosely packed particles. ...
Gaseous matter is composed of particles packed so loosely that it has neither a defined shape nor a defined volume.