Spencer has been saving money to buy a new phone. His friends invite him to a concert next weekend. He tells them he really want
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Answer:
D. y = 1/2x + 3/2
Explanation:
You probably already know the point slope equation:
y = m(x - x₀) + y₀
All you need is the slope and the (x₀, y₀).
The (x₀, y₀) could be solved by plugging in the given x=-1 value into the function.
m, the slope, is the same as a derivative; ie. a derivative is a slope.
So solve for the derivative and find the slope at x=-1.
Plug into point slope equation and simplify.
The reaction between ethanol C2H5OH and water H2O is a chemical reaction and is exothermic.
Option A is correct.
<h3>What is a chemical reaction?</h3>A chemical reaction is a rearrangement between the ions and molecules of a substance. For a chemical reaction to take place, bonds are broken in the reactants and new bonds are formed in the products.
The chemical reaction between ethanol and water is;
- This reaction is exothermic because molecules move from a higher state of energy to lower states.
- The resulting volume is also lesser than the initial volumes of the reactants according to Henry's Law, showing that heat is given off to the walls of the container.
Therefore, we can conclude that A chemical reaction occurs, as evidenced by the volume of the resultant mixture being less than the total volume of the initial components.
Learn more about the chemical reaction here:
Answer: dont listen to the weirdo charging for money LOLL got a 96% on the Cumulative Exam II (part b of AP World): c d b b b a b d b c a c b d d a a d b a d b d d c a b b b a b d a d b c b b b d a d b b c d b c b c
Explanation:
got the first one wrong, i put d. its c
