Raven knows that ammonia will react with vinegar when they are both dissolved in water. She's concerned the reaction will go too quickly. How can she slow down the reaction?
Question 13 options:
Increase the concentration of dissolved substances
Decrease the concentration of dissolved substances
Add a catalyst
There's nothing she can do to change the rate of reaction.
Question 14 (2 points)
Which of the following is a solution?
Question 14 options:
Popcorn
A salad
Pure water
Salt dissolved in water
Question 15 (2 points)
The picture shows two solutions of salt water. Which solution is more concentrated (has a higher concentration)?
Question 15 options:
The first solution is more concentrated
The second solution is more concentrated
The solutions have the same concentration.
Question 16 (2 points)
What must occur for particles to react?
Question 16 options:
They must collide
They must photosynthesize
They must condense
They must melt
Question 17 (3 points)
In your opinion, what the most important OR interesting thing from this unit? If you didn't find anything interesting, please write one thing that you learned.
Write a full sentence, please.
Question 17 options:
