1) centrifuge is used to separate mixtures which are heterogeneous in nature.
So here in the given examples
A) Cream and milk, because of their difference in density
2) sterling silver is a homogenous mixture alloy.
So answer is A homogeneous mixture, because the different components are mixed and evenly within the substance
3) Compound is when atoms combine by chemical reaction and they lose their identity
Seeing as there are 12 Carbon atoms and 12 Oxygen atoms, the ratio is 12:11
12/11 etc.
The temperature is the same, so the amount of kinetic energy will also be the same.
The molecules vibrate when the substance is heated, and the shape of the substance begins to form a different shape. For example: when you hear up metal it will melt becuase its molecules are changing and moving.
Answer:
31 moles
Explanation:
The balanced combustion reaction of the wax, 
is shown below as:
As seen from the reaction,
1 mole of wax, on combustion produces 31 moles of carbon dioxide, 
<u>Hence, moles of when 1 mole of wax, is burnt = 31 moles</u>
