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Answer:
2) atom
5) anode and electron
sorry I knew only these 2 answer!
Answer: 1) answer: A weak base dissociates partially to form hydroxide as the only negative ions.
2) answer: Ionic compounds are generally soluble in polar solvents like water
3) answer: Relative molecular mass of an element /compound is the number of times one molecule of a substance is heavier than minus -1 /12 that the mass of an atom of carbon(C12)
4) answer: Magnesium oxide (MgO) is a base and not an acid. Magnesium is a metal and like most of the metals, it form basic oxides. When magnesium oxide reacts with water the following reaction takes place: magnesium hydroxide is formed in this reaction.
5) answer: The metal plate trough which current enters into an electrolyte is called Anode . It has lack of electrons.
Explanation: