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From the air. The air consists of 78% nitrogen and 21% oxygen. The other 1% is made of argon, carbon dioxide and other gases. The oxygen is kept replenished when green plants photosynthesise. This involves the plant extracting the carbon dioxide from the air, absorbing water through its roots, and, using the green pigment chlorophyll in its leaves, convrts these two substances into sugars (its own food) and oxygen which is released into the air to replace what we have used.
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How many moles of oxygen are needed to burn 7.0 mols of phosphorus?
8,75 moles of oxygen are needed.
How many moles of O2 are needed to burn 1.35mol of C8H18?
16,875 moles of oxygen are needed.
How many grams of oxygen will be required to produce 25 moles of sulfur dioxide how many grams of oxygen will be required to produce 25 moles of sulfur dioxide?
800 g oxygen are needed.
How many molecules of oxygen 2 are needed to react with which molecule of methane CH4?
6 molecules of oxygen are needed to react with 3 methane molecules as one molecule of oxygen ( O2) are needed for methane gas.
What are needed for cellular metabolism between oxygen and nitrogen?
oxygen
How many people rely on oxygen machines?
Millions of people worldwide depend on oxygen machines. As an everyday routine, a part of their lives, oxygen machines provides much needed oxygen for many people that can't breathe on their own without assistance.
How many trees are needed to supply enough oxygen -for 30 people for a year?
10
How many moles of oxygen are needed to burn 7.0 mols of phosphorus?
8,75 moles of oxygen are needed.
How many oxygen atoms are needed to react with barium?
One
What gas is needed for cellular respiration?
Oxygen is needed for aerobic respiration.
How many moles of O2 are needed to burn 1.35mol of C8H18?
16,875 moles of oxygen are needed.
How many sodium atoms are needed to form a stable compound with oxygen?
1
How many oxygen atoms are needed to start photosynthesis reaction?
2 atoms
How many trees are needed per day per human for oxygen?
about 5.
How many grams of oxygen will be required to produce 25 moles of sulfur dioxide how many grams of oxygen will be required to produce 25 moles of sulfur dioxide?
800 g oxygen are needed.
How many grams of oxygen are needed to react with 350g of iron to produce 500g of Fe2O3?
You need 150,41 g oxygen.
How many grams of oxygen are needed to react with 21.0 g of Mg?
13.8 g
