Chemistry Where does the oxygen that keeps us alive come from? Water Carbon dioxide Oxides of minerals Carbonates absorbed from soil Water Carbon dioxide Oxides of minerals Carbonates absorbed from soil ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical name of quartz is Sodium silicate Calcium phosphate Sodium phosphate Calcium oxide Sodium silicate Calcium phosphate Sodium phosphate Calcium oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The components of water can be separated by They can not be separated Chemical methods Both A and B Physical methods They can not be separated Chemical methods Both A and B Physical methods ANSWER DOWNLOAD EXAMIANS APP
Chemistry The basic chemical building block of natural rubber obtained from trees is Isoprene Vinyl Chloride Acetylene Neoprene Isoprene Vinyl Chloride Acetylene Neoprene ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal that is used as a catalyst in the hydrogenation of oils is Ni Cu Pt Pb Ni Cu Pt Pb ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant element in the earth’s atmosphere is Nitrogen Oxygen Argon Krypton Nitrogen Oxygen Argon Krypton ANSWER DOWNLOAD EXAMIANS APP
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