Answer:
The answer to your question is 175 gallons
Explanation:
Data
60% antifreeze solution volume = ? = x
25% antifreeze solution volume = 25%
Final concentration 50%
Process
0.6x + 0.25(70) = 0.5(70 + x)
Simplification
0.6x + 17.5 = 35 + 0.5x
0.6x - 0.5x = 35 - 17.5
0.1x = 17.5
x = 17.5/0.1
Result
x = 175 gallons
Answer:
a supply of electric charges which are free to flow, some form of push to move the charges through the circuit and a pathway to carry the charges.
Explanation:
There's your answer have a good day
A chemical reaction absorbs energy which means it is endothermic reaction.
The reaction is endothermic if the energy of products is more than the energy of reactants.
The energy of products is more means that the bond energy of products is more than the bond energy of reactants.
so breaking of bond needs energy which is greater than the energy released in making of new bonds.
Enthalpy of reaction = Bond energy of reactants - Bond energy of products.