Chemistry The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind? 1/8 1/6 1/4 1/3 1/8 1/6 1/4 1/3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry All isotopes of the same element have ________ Different atomic numbers and the same atomic mass The same atomic number and the atomic mass The same atomic number but different atomic masses Different atomic numbers and different atomic mass Different atomic numbers and the same atomic mass The same atomic number and the atomic mass The same atomic number but different atomic masses Different atomic numbers and different atomic mass ANSWER DOWNLOAD EXAMIANS APP
Chemistry Match the sourc in Column B with the product of Column A. (Product) Column B (Source)A. Formic acid1. LemonB. Citric acid 2. TamarindC. Tartaric acid3. Ants A B C 2 3 1 A B C3 2 1 A B C 3 1 2 A B C 2 1 3 A B C 2 3 1 A B C3 2 1 A B C 3 1 2 A B C 2 1 3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry High concentration hydrocarbon pollutants in atmospheric air causes Reduced crop yield Respiratory diseases (e.g.asthma) Silicosis Cancer Reduced crop yield Respiratory diseases (e.g.asthma) Silicosis Cancer ANSWER DOWNLOAD EXAMIANS APP
Chemistry Among the following the hardest metal is Platinum Iron Tungsten Gold Platinum Iron Tungsten Gold ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is the purest form of carbon Graphite Iron Coal Diamond Graphite Iron Coal Diamond ANSWER DOWNLOAD EXAMIANS APP
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