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Explain the difference, in shape and bond angle, between a CO2 molecule and an SO2 molecule?

In a carbon dioxide molecule, the central carbon atom is surrounded by two areas of electron density. These are the bonds to the oxygen molecules. These areas of electron density are negatively charged and r...
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Answered by James M. • Chemistry tutor
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Calculate the mass of 7.23 moles of CH​​​​​​​4

Molar mass of CH 4 = 12 + 4(1) = 16 mass = Mr x moles mass = 16 x 7.23 mass = 115.68g = 116g (3sf)
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Answered by Misha P. • Chemistry tutor
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Why is graphite softer than diamond if they are made up from the same covalently bonded carbon atoms?

Diamond is an extremely strong and rigid substance because of its molecular structure, which is giant covalent structure. This means that every carbon is covalently bonded to 4 other carbon molecules to form...
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Answered by George W. • Chemistry tutor
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What is an unsaturated hydrocarbon?

An unsaturated hydrocarbon is a molecule containing only hydrogen and carbon with a carbon carbon double bond in the molecule.
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Answered by Ella N. • Chemistry tutor
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Describe and explain how the reactivity of the elements changes as you go down group 1

As you go down group 1, the reactivity increases. This is because each element has only one electron in their outer shell, so need to lose this electron in order to react. As you go down group 1, the number ...
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Answered by Edward S. • Chemistry tutor
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