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Which statement is NOT true? A. 3.6 kg = 3,600 g B. 300 mL 50 mg D. 3.7 cm > 45 mm
Weegy: There are three significant figures in the measurement 50,600 mg. They are 5, 6 and one 0. (More)
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Asked 8/20/2012 9:35:21 AM
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Which statement is NOT true? A. 3.6 kg = 3,600 g B. 300 mL 50 mg D. 3.7 cm > 45 mm
Weegy: 3.7 cm = 37 mm So D is incorrect (More)
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Asked 8/20/2012 9:34:03 AM
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Which of the following does NOT show the law of conservation of mass? A. 24 g of Mg burn in 32 g O2 to produce 56 g of MgO. B. 24 mL of Mg burn in 32 mL O2 to produce 56 mL of MgO. C. 2 atoms of Mg react with 1 molecule of O2 to produce 2 units of MgO. D. 1 atom of Mg reacts with 1 atom of O to produce a unit of MgO that contains 2 atoms User: Which of the following is a balanced chemical equation for the synthesis of NaBr from Na and Br2? A. Na + Br2 ? NaBr B. 2Na + ...
Weegy: D. 2Na + Br2 - - > 2NaBr User: Methane, CH4, burns in oxygen gas to form water and carbon dioxide. What is the correct balanced chemical equation for this reaction? A. CH4 + O ? H2O + CO2 B. CH4 + 4O ? 2H2O + CO2 C. CH4 + O2 ? H2O + CO2 D. CH4 + 2O2 ? 2H2O + CO2 Weegy: D. CH4 + 2O2 ? 2H2O + CO2 User: How many atoms are present in 3 moles of chromium? A. 6.02 x 1023 atoms B. 1.80 x 1023 atoms C. 1.80 ... (More)
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Asked 8/20/2012 9:08:45 AM
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