Answer:
Explanation:
Acceleration is found by dividing the change in velocity by the time. The formula is:
where 
is the final velocity, 
is the initial or starting velocity, and 
is the time.
Her velocity changes <u>from</u> 2 meters per second <u>to</u> 4 meters per second in the 5 seconds. Therefore:
Substitute the values into the formula.
Solve the numerator and subtract.
Divide.
This can also be written as a decimal.
Her average acceleration during the last 5 seconds of the race is 2/5 or 0.4 meters per square second.
Wouldn't it be 100? 150 - 50 would equal 100. Unless I'm not seeing something.
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Answer:
The molarity of the solution increases.
Explanation:
Molarity is the measure of the concentration of the solute in the solution. In this case, the solvent is the sugar solution and the solute is the sugar.
If sugar is ADDED to the already sugary solution, then there would be more sugar. Therefore, the sugar (solute) would increase in number.
This means that the answer is the third choice: The molarity of the solution increases.
The answer would not be the first or second choice because there isn't anything in the question that implies water. It just says sugar solution.
The answer is not the last choice because the sugar concentration does not decrease after you have added more sugar to it. It increases.
Answer: The reactants’ bonds break, and bonds of the products form.
Explanation:
When a chemical reaction takes place, the bonds are broken and new bonds are formed to make new molecules. Like when 2 water molecules are broken down to form hydrogen and oxygen.
