Chemistry The metallic constituents of hard water are : Magnesium, calcium and tin Magnesium, tin and iron Calcium, magnesium and iron Iron, tin and calcium Magnesium, calcium and tin Magnesium, tin and iron Calcium, magnesium and iron Iron, tin and calcium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following minerals is found in pure form? Iron Bauxite Manganese Copper Iron Bauxite Manganese Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry The third shell of an atom can have a maximum of ______ electrons 18 13 21 15 18 13 21 15 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used in dating archaeological findings ? 13H 818O 92235U 614C 13H 818O 92235U 614C ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a renewable source of energy ? Natural gas Uranium Coal Geothermal powder Natural gas Uranium Coal Geothermal powder ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ethanol containing 5% water is known as Denatured spirit Power alcohol Methylated alcohol Rectified spirit Denatured spirit Power alcohol Methylated alcohol Rectified spirit ANSWER DOWNLOAD EXAMIANS APP
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