Chemistry The pH of human blood is between : 6.5-7 7.5-8 4.5-5 44052 6.5-7 7.5-8 4.5-5 44052 ANSWER DOWNLOAD EXAMIANS APP
Chemistry What particles move around the nucleus of an atom and are negatively charged? Electrons Protons Positrons Neutrons Electrons Protons Positrons Neutrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry The first metal used by a man was Bronze Copper Silver Brass Bronze Copper Silver Brass ANSWER DOWNLOAD EXAMIANS APP
Chemistry The mass number of a nucleus is a fraction the sum of the number of protons and neutrons present in the nucleus always more than the atomic weight always less than its atomic number a fraction the sum of the number of protons and neutrons present in the nucleus always more than the atomic weight always less than its atomic number ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron rusts quickly in Sea water Distilled water River water Rain water Sea water Distilled water River water Rain water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Benzene cannot undergo : Oxidation Elimination Substitution Addition Oxidation Elimination Substitution Addition ANSWER DOWNLOAD EXAMIANS APP
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