Chemical energy is the energy that bonds atoms are ions together. This energy is released when the chemical bonds are released. Atoms or ions bond together to form molecules or compounds. Breaking the bonds of these molecules release energy. The food we eat contains chemical energy. When oxygen is combined to sugars in food via the process of respiration, the bonds in the sugar molecules are broken and the energy that is released is used to carry out bodily functions. <span />
In viewing a chemical equation,we <span>determine the ratios that relate reactants and products </span>from the coefficients of the reactants and products .
The correct option is C.
The pitch of a string refers to the quality of sound that is produced by the string when it vibrates. There are three basic factors that affect the quality of pitch of a string, these are: the tension, the thickness of the string and the length of the string. The higher the thickness of the string, the lower the pitch of the string, thus, increasing the thickness of the string will lower the pitch.
Answer:
470 °C
Explanation:
This looks like a case where we can use Charles’ Law:
Data:
V₁ = 20 L; T₁ = 100 °C
V₂ = 40 L; T₂ = ?
Calculations:
(a) Convert the temperature to kelvins
T₁ = (100 + 273.15) K = 373.15 K
(b) Calculate the new temperature
Note: The answer can have only two significant figures because that is all you gave for the volumes.
(c) Convert the temperature to Celsius
T₂ = (750 – 273.15) °C = 470 °C
It is 95% ethanol and 5%water
I’m pretty sure hope you get it right!
:)
