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Questions in chemistry
📝 Answered - The combustion of propane may be described by the chemical equation: \[ \text{C}_3\text{H}_8(g) + 5\text{O}_2(g) \rightarrow 3\text{CO}_2(g) + 4\text{H}_2\text{O}(g) \] How many grams of \(\text{O}_2(g)\) are needed to completely burn 40.4 g of \(\text{C}_3\text{H}_8(g)\)?
📝 Answered - How many occupied orbitals does a fluorine atom contain in the ground state?
📝 Answered - Which group of elements is the most unreactive? Why?
📝 Answered - Name two ways archaea differ from bacteria.
📝 Answered - What is the maximum mass of methane (CH₄) that can be burned if only 1.0 g of oxygen is available? How do you figure it out?
📝 Answered - Water in a pan over a radiator evaporates much faster than water in a pan on a table. Why does this happen?
📝 Answered - Why is it correct to say seawater is a mixture?
📝 Answered - How can you demonstrate that a piece of chalk has mass?
📝 Answered - Is a pot holder a conductor or an insulator?
📝 Answered - What is a direct combination reaction?
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