Answer:
-368.62 kJ/mol
Explanation:
[(2 x - 470.11 kJ/mol) ( 0kJ/mol)] - [ 2 x -285.8 kJ/mol) (2x 0 kj/mol)] = -368.62 kJ/mol
Answer:
2C7H16 + 22O2------------> 14CO2 + 16H20-
Explanation:
Write and balance the equation for the complete combustion of heptane, C7H16. Phase symbols and energy changes are optional.
2C7H16 + 22O2------------> 14CO2 + 16H20-
False
The water is more buoyant which means the water has more of a tendency to float than the duck.
Answer:
s and p
Explanation:
The main group elements includes elements in Groups 1-2 and Groups 13-18. Groups 1-2 on the periodic table are the s block elements which means the valence electrons are located in the s suborbital. Groups 13-18 on the periodic table are the p block elements which means the valence electrons are located in the s and p orbitals.
Chemical changes<span> occur when a substance combines with another to form a new substance, called </span>chemical<span> synthesis or, alternatively, </span>chemical <span>decomposition into two or more different substances.
So which one do you think is the answer?</span>