The study of very tiny particles or structures between 1 and 100 nanometres in size - where 1 nanometre = 1.0 x 10^(-9) metres.
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What is neutral?
A solution with a pH value of 7 that is neither acidic nor an alkaline. Alternatively, something that carries no overall electrical charge - neither positively nor negatively charged.
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What is neutralisation?
The chemical reaction of an acid with a base in which they cancel each other out, forming a salt and water. If the base is a carbonate, carbon dioxide is also produced in the reaction.
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What is a neutron?
A dense particle found in the nucleus of an atom. It is electrically neutral, carrying no charge.
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What is nitrogen oxides?
Gaseous pollutants given off from mother vehicles, a cause of acid rain.
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What is a nucleus?
The very small and dense central part of an atom which contains protons and neutrons.
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Card 2
Front
What is neutral?
Back
A solution with a pH value of 7 that is neither acidic nor an alkaline. Alternatively, something that carries no overall electrical charge - neither positively nor negatively charged.
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