Chemical Reactions & Properties of Matter - Unit Assessment

What is your name?

Total weight of Mia's lemonade:

Total weight of Kayla's lemonade:

Total weight of Eli's lemonade:

Eli’s popsicles will taste sweeter than Mia’s popsicles or Kayla’s popsicles because there is more sugar in them.

• True
• False

Eli’s popsicles will weigh slightly more than Mia’s popsicles or Kayla’s popsicles because there is more sugar in them.

• True
• False

Eli’s, Mia’s, and Kayla’s popsicles will all be exactly the same.

• True
• False

3. If Laila weighs the salt and vinegar solution and the pennies after the experiment, what do you think she will find?

• The solution will weigh more and the pennies will weigh less after the experiment.
• The solution will weigh less and the pennies will weigh more after the experiment.
• The solution will weigh the same and the pennies will weigh the same after the experiment.
• The solution will weigh the same and the pennies will weigh less after the experiment.

If the pennies weighed 8 grams after the experiment, how much did the salt & vinegar solution weigh?

• 19 grams
• 17 grams
• 15 grams
• 22 grams

5. The picture below shows a sealed plastic bag filled with vinegar at the bottom. A cup of baking soda is about to mix with the vinegar. When the baking soda mixes with the vinegar, bubbles will form and the plastic bag will start to expand. Why does the bag expand? Explain below.