Molar mass:
H₂O = 18.0 g/mol
O₂ = 32.0 g/mol
<span>C</span>₅<span>H</span>₁₂<span> + 8 O</span>₂<span> -> 5 CO</span>₂<span> + 6 H</span>₂<span>O
</span>
8 x (32 g ) ------------ 6 x (18 g )
mass O₂ ------------ 108 g H₂O
mass O₂ = 108 x 8 x 32 / 6 x 18
mass O₂ = 27648 / 108
mass O₂ = 256 g
hope this helps!
A and C are the correct answers. Because there is no gravity to pull fluids down, they are in your face and hands more than normal. Our bones and muscles become weaker because without gravity objects lack weight.
1 mole(6.02*10^23) = Amount of atoms in 12g of carbon-12.
1 gram = 1 mole of amus(Atomic mass units)
13 Moles of AI = 13x(6.02x10^23) = 13 grams
13x(6.02x10^23) Au atoms = 13 moles = 13 grams
Not sure if this is the answer your looking for.(the "^" represents an exponent)<span />
<span>Hot air rises because the molecules are further apart so it can take more room. </span>Which makes hot air lighter than cold air. Cold air sinks because it has more molecules but in the same amount of room.
