Answer:
construction means everything is built from
EXCEPT NATURE
Explanation:
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It is rinsed one last time with the solution to be measured because if there is water in the burret, then it could alter the results. Slightly, but it is still altering it.
D: After they emit light, electrons are sucked into the nucleus of the atom.
Answer:
290 grams
Explanation:
Let's begin by writing the balanced chemical equations:

Then we calculate the number of moles in 97g of propane.
n(propane)=
According to the balanced chemical equation, one mole of propane produces 3 moles of carbon dioxide. So the available number of moles of propane must be multiplied by three to work out the number of carbon dioxide produced.
n(carbon dioxide)= 2.1995mol*3 = 6.5985mol
mass(carbon dioxide) = moles * molar mass
= 6.5985 mol * 44.01 g/mol
= 290 grams