A refugee is illegal until they have the proper paperwork for that specific country they are trying to get into.
You need to know the neutrons because the atomic mass is made up of the number of protons and neutrons
Hello!
Vinegar would be most effective in dissolving the deposits of Hard Water.
Vinegar (CH₃COOH) is a weak acid, while Calcium Carbonate (CaCO₃), being the salt of a weak acid, will be a weak base. These two compounds will react together in the following way:
2CH₃COOH + CaCO₃ → (CH₃COO)₂Ca + H₂CO₃
H₂CO₃ reacts further to yield Water and CO₂
H₂CO₃ → H₂O + CO₂(g)
So, vinegar would be effective at dissolving CaCO₃, and we should see bubbles as a proof that a reaction has occurred.
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Answer:
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Explanation:
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It is rinsed with ionised water to remove any impurities that may be present
