Answer:
18 cm
Explanation:
Because the question asks for the total distance moved the fact that the car is on a number line is irrelevant. So all you have to do is 8+4+6 which adds up to 18. and the units are all in cm so the final answer is 18 cm.
Answer:
C2H5OH(l) +3O2(g) → 2CO2(g) + 2H2O(l)
it is combustion reaction and heat is also produced.
Explanation:
This is oxidation reduction reaction which is also called redox reaction.
C2H5OH is reducing agent while O2 is oxidizing agent.
Chemical equation:
C2H5OH + O2 → CO2 + H2O
Now we will balance the equation. In given chemical equation two carbon atoms on the left side and one carbon atom on the right side. While six hydrogen atoms are present on the left and just two hydrogen on right side. We will write coefficient two with carbon dioxide and and three with water molecules.
C2H5OH + O2 → 2CO2 + 3H2O
now we will balance the oxygen atoms. we can see there are three oxygen atoms on the left and seven on right side. we will write coefficient three with oxygen on left and equation becomes balance.
C2H5OH + 3O2 → 2CO2 + 3H2O
Complete chemical equation with physical states:
C2H5OH(l) + 3O2(g) → 2CO2(g) + 3H2O(l)
Answer: D. New data must be found to support it
When a theory is disproved by other further evidence, it is just proper to look for new data to support the theory until it is proven otherwise. It cannot be considered a failure right away but cannot be part of the scientifi knowledge too and more not to become a law.
The answer to this is protons