Complete the following equations:
A) methyl butanone + oxygen --->
B) a pentagon + F2 ----->
A) To complete the equation "methyl butanone + oxygen --->", we first need to understand the reactants involved. Methyl butanone, also known as methyl ethyl ketone (MEK), has the chemical formula C4H8O. Oxygen has the chemical formula O2.
To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides of the arrow. Let's start by balancing the carbon atoms. We have four carbon atoms in the methyl butanone, so we should also have four carbon atoms on the product side.
C4H8O + O2 ---->
To balance the hydrogen atoms, we have eight hydrogen atoms in the methyl butanone, so we should have eight hydrogen atoms on the product side.
C4H8O + O2 ----> CO2 + H2O
Lastly, we balance the oxygen atoms. We have 10 oxygen atoms coming from the O2 molecule, so we need to place five O2 molecules on the product side.
C4H8O + 5 O2 ----> 4 CO2 + 4 H2O
Therefore, the balanced equation is:
Methyl butanone + 5 oxygen molecules ---> 4 carbon dioxide molecules + 4 water molecules.
B) Balancing the equation "a pentagon + F2 ----->" requires understanding the nature of the reactants. A pentagon is a geometric shape consisting of five sides. F2 represents a diatomic molecule of fluorine gas.
Since the pentagon is not a chemical compound, we cannot balance it in the way we balance chemical equations. However, based on the given equation, we can deduce that the pentagon is a reactant.
To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides of the arrow. As there are no other elements or compounds provided besides the pentagon and fluorine (F2), we only need to balance the fluorine atoms.
Since F2 is a diatomic molecule, we have two fluorine atoms on the product side. Hence, we need two atoms of fluorine on the reactant side as well.
2 F atoms are already present in F2, so we can write:
Pentagon + F2 -----> 2 F (assuming the pentagon breaks apart into fluorine atoms)
Therefore, the balanced equation is:
Pentagon + F2 -----> 2 F.