Question 11 (2 points) The diagram below shows two models of the atom.
Electron
o
о
Proton
O
Thompson's model
Bohr's model
Source: Creative Commons
2010 FLVS
The models can be best used to (2 points)
Оа
Oь
recreate something which is easily observed in nature
prove that all atomic theories have the same meaning
demonstrate the transformation of atomic theory into law
Od
represent the locations of subatomic particles in different atomic theories

a small container that holds a source of energy a solar cell that captures light energy and converts it into electricity a voltaic cell that uses the oxidation of a fuel to produce electricity

explanation:

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answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.