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chemical changes - Coggle Diagram
chemical changes
acids and bases
pH scale:
you can measure the pH of a solution. by using a indicator that changes colour depending on whether its above or below a certain pH
the pH scale is measure of how acidic or alkaline a solution is. the lower the ph the lower the solution is the more acidic it is and the higher the number the more alkaline it is
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metal oxides
Metals react with oxygen to produce metal oxides. The reactions are oxidation reactions because
the metals gain oxygen.
Oxidation is the loss of electrons during a reaction by a molecule, atom or ion. Oxidation occurs when the oxidation state of a molecule, atom or ion is increased. The opposite process is called reduction, which occurs when there is a gain of electrons or the oxidation state of an atom, molecule, or ion decreases.
reactivity series
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reactivity in a reactivity series. The metals potassium, sodium, lithium, calcium, magnesium, zinc,
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