Can someone help me out now pls? I’m doing the test now. Please explain ur answer.
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Chemistry, 03.05.2020 13:14 payshencec21
Can someone help me out now pls? I’m doing the test now. Please explain ur answer.
Answers: 2
Chemistry, 20.06.2019 18:04
Can anyone (a-level) a student was analysing a carbonate compound, mco3, containing an unknown group 2 metal, m. the student carried out thermal decomposition on 0.730g of the carbonate and measured the volume of gas produced. mco3 (s) mo (s) + co2 (g) the student collected and measured 120cm3 of carbon dioxide. 1 mol of carbon dioxide occupies 24 000 cm3 under these conditions. calculate the molar mass of the group 2 carbonate and hence deduce the identity of the group 2 metal, m.
Answers: 3
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Based on the law of conservation of energy, which statement is false? answer- energy is lost when machines dont work right
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If i make a solution by adding 83grams of sodium hydroxide to 750ml i’d water what is the molarity of sodium hydroxide
Answers: 1
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Adrop of acetone (nail polish remover) has a mass of 35 mg and a density of 0.788 g/cm3. what is its volume in cubic centimeters?
Answers: 3
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