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The density of a gas is 1.26 g/L at STP. What is the mass of 1 mole? What could this gas be?
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Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture
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Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:
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The density of a gas is 1.26 g/L at STP. What is the mass of 1 mole? What could this gas be?...
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