8.) According to NASA, the average person breathes 840 grams of oxygen per day. If you need to make 840 grams of oxygen according to the following equation, how many grams of water will you need to use? 2 H₂O --> 2 H₂ + O2

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8.) According to NASA, the average person breathes 840 grams of oxygen per day. If
you need to make 840 grams of oxygen according to the following equation, how many
grams of water will you need to use?
2 H₂O -- 2 H₂ + O2
Transcribed Image Text:8.) According to NASA, the average person breathes 840 grams of oxygen per day. If you need to make 840 grams of oxygen according to the following equation, how many grams of water will you need to use? 2 H₂O -- 2 H₂ + O2
(4.) You realize you really don't want to invest with me. Instead, you take your
$22,352.42 and buy pure gold with it.
If gold has a density of 19.3 grams/cm³, and 1 kg = 2.2046 pounds, how many
pounds of gold did you buy if the price of gold is $55.96 per gram? (report
with correct sig figs)
Transcribed Image Text:(4.) You realize you really don't want to invest with me. Instead, you take your $22,352.42 and buy pure gold with it. If gold has a density of 19.3 grams/cm³, and 1 kg = 2.2046 pounds, how many pounds of gold did you buy if the price of gold is $55.96 per gram? (report with correct sig figs)
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