Answer:
x = 5 and y =4
Explanation:
An alkane is a hydrocarbon of general molecular formula CnH2n+2. The general formula for balancing the combustion equation of any alkane is;
CnH2n+2 + 3n+1/2O2 ------> nCO2 + (n+1) H2O
Where n is the number of carbon atoms in the alkane.
In C3H8 , n=3 so;
C3H2(3)+2 + 3(3)+1/2O2 ------> 3CO2 + (3+1) H2O
Then;
C3H8 + 5O2 ------> 3CO2 + 4H2O
Therefore;
x = 5 and y =4
Answer:
loses electrons and loses potential energy.
Explanation:
A reducing agent looses electrons in an oxidation-reduction reaction. Oxidation is defined as the loss of electrons.
Reducing agents are oxidized in an oxidation-reduction reaction. When a specie looses electrons, it also looses energy. Hence the answer given above.
When parallel rays exit a concave lens, the light rays are divergent.
The rays diverge or bend away from the axis it has been traveling upon entering the lens when it reaches the other side of the lens. These rays appear to have come from the same focal point before entering the concave lens. When these parallel rays are extended, it will be traced back to a single point of origin.
<h3>
Answer:</h3>
4.3 miles
<h3>
Explanation:</h3>
We are given;
Distance of 22,704 feet
We are required to determine the number of miles in 22,704 feet
- To convert one unit to another we use conversion factors
- Therefore, we need to know the suitable conversion factor.
- That is, 1 mile/5,280 feet
- Thus, to determine the number of miles we multiply the number of feet with the conversion factor.
That is;
= 22,704 feet × 1 mile/5,280 feet
= 4.3 miles
Therefore, there are 4.3 miles in 22,704 feet
