Iron would be hotter, aluminum loses heat easier<span />
Answer is: <span>the size of the sample of uranium-238 does not affect its half-life.
</span><span>
The half-life for the
radioactive decay of U-238 is 4.5 billion years and is independent of initial
concentration (size of the sample).
</span>Half-life <span>is
the time required for a quantity (in this example number
of radioactive uranium) to reduce to half its initial
value.</span><span>
</span>
The moon goes through a complete phase cycle about every month.
It's hydrogen peroxide plus carbon plus hi Hydrogen plus oxygen plus carbon hydroxide iron
Answer: 0.071 moles of excess reactant 
will be left over.
Explanation:
To calculate the moles, we use the equation:
a) moles of 
b) moles of 
According to stoichiometry :
2 moles of require 1 mole of
Thus 0.720 moles of require=
of
Thus is the limiting reagent as it limits the formation of product and is the excess regaent.
moles of left = (0.431-0.360) = 0.071 moles
