Explanation:
loss of electrons and an increase in oxidation number
The vapour pressure of a substance actually differs
relative to the temperature. So to know which compound has the vapour pressure
of 58 kilopascals at 65 degrees Celsius, we refer to standard tables of
temperature vs Vapour pressure.
From the tables or graph, the answer here is:
<span>2. ethanol</span>
Answer:
34.59 % Al; 61.54 % O; 3.877 % H
Explanation:
% by mass = mass of element/total mass × 100 %
Let's rewrite the formula of Al(OH)₃ as AlO₃H₃.
Set up a table for easy calculation.
<u>Atom</u> <u> Mass/u </u> <u>Subtotal
</u>
1Al 1 × 26.98 = 26.98 u
3O 3 × 16.00 = 48.00 u
3H 3 × 1.008 = <u> 3.024 u
</u>
Total = 78.004 u
Mass % Al = 26.98/78.004 × 100 % = 34.59 %
Mass % O = 48.00/78.004 × 100 % = 61.54 %
Mass % H = 3.024/78.004 × 100 % = 3.877 %
Answer:
no it will not change
Explanation:
friction always acts to oppose any relative motion between surfaces.
Answer: True
Explanation: Intensive property does not depend on the amount of matter. Specific internal energy is an intensive property.
