cameroon gce o level June 2018 chemistry 1

cameroon gce o level June 2018 chemistry 1

cameroon gce o level June 2018 chemistry 1

1. the particles that make up the nucleus of an atom are

(a) Electrons and protons

(b) Protons and neutrons

(c) Nucleons and protons

(d) Electrons and neutrons

2. what change does camphor undergo when heated

(a) Dissolving

(b) Vaporization

(c) Sublimation

(d) Melting

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