Chemistry, 29.09.2019 15:00 ainhoagmz903

You have a 0.05 kg object. what is its mass in milligrams?

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Chemistry, 20.06.2019 18:04, krojas015

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.

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Chemistry, 21.06.2019 18:00, FloweyFlower

Aballoon inflated with three breaths of air has a volume of 1.7 l. at the same temperature and pressure, what is the volume of the balloon if five more same-sized breaths are added to the balloon? a balloon inflated with three breaths of air has a volume of 1.7 l. at the same temperature and pressure, what is the volume of the balloon if five more same-sized breaths are added to the balloon?

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Chemistry, 22.06.2019 08:30, dyanaycooper13

Analyze how limestone is weathered and identify the features that are formed as a result of this dissolution

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Chemistry, 22.06.2019 09:50, Amandachavez94

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange