A. Ethanol B. Butane C. Benzene D. Alcohol
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A. Combusion reaction B. Endothermic reaction C. Displacement reaction D. Exothermic reaction
A. Very strong B. Very weak C. Weaker D. Stronger
A. Blue B. Red C. White D. Green
A. Magnesium B. Beryllium C. Potassium D. Calcium
A. Newlands B. Moseley C. Dobereiner D. Mendeleev
A. 56 B. 58 C. 55 D. 57