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!
Many things could indicate that a chemical change has occurred. The release of a gas, or bubbling, etc. Just be careful not to mix it up with physical changes. A chemical change means that the chemical structure is different. You can reverse a physical change, but you cannot reverse a chemical reaction.
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Color (intensive) with a color pallet or a colorimeter or spectrophotometerdensity (intensive) with a balance and a water-filled cylindervolume (extensive) with a cylindermass (extensive) with a balance
boiling point (intensive): the temperature at which a substance boils (with a thermometermelting point (intensive): the temperature at which a substance melts
temperature<span>, pressure, and </span>density<span>. A few other examples are </span>heat<span> capacity, </span><span> </span>thermal<span> conductivity, and electrical conductivity.
conductometer,
</span>
Answer:
B
Explanation:
If the frequency is doubled, the wavelength is only half as long.
If the wavelength Doubled, the frequency is reduced.
