Question

Justin is making a snack. He toasts a piece of bread and spreads peanut butter and jelly on it. Then he cuts an apple into several slices and adds these to his plate. Next, Justin mixes a scoop of lemonade powder into a glass of water, mixes it, and adds ice.

How many chemical changes occurred in this scenario?

one
two
three
four

Answer 1

This question answer is four

Answer 2

One chemical change occurred in this scenario.

• The changes are as follows -

1. Toasting a bread = chemical change. (burning is included, thus a chemical change.)
2. Spreading jam and butter = physical change. (self explanatory)
3. Cutting an apple = physical change. (self explanatory)
4. lemonade powder in water = physical change. (powder will be dissolved in water without occuring any chemical reaction.)

• So, the total number of chemical change is one and rest of them are physical changes.