subject
Chemistry, 20.11.2020 22:40 brendaesme

Which situation describes a chemical change? A. Clay pressed into a mold takes on the shape of the mold.
B. Baking soda added to vinegar gives off carbon dioxide gas.
C. Chocolate changes from a solid to a liquid when heated.
D. Rubbing pencil lead onto paper changes the color of the paper.

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 22.06.2019 05:30
Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage
Answers: 3
question
Chemistry, 22.06.2019 05:50
What are transitions between a liquid and a solid called? identify which way they are transitioning
Answers: 2
question
Chemistry, 22.06.2019 10:10
How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?
Answers: 1
question
Chemistry, 22.06.2019 10:30
Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + ½o2(g) → mgo(s) + 146 kcal/mole h2(g) + ½o2(g) → h2o(g), δh = -57.82 kcal/mole what type of reaction is represented by the previous two examples?
Answers: 3
You know the right answer?
Which situation describes a chemical change? A. Clay pressed into a mold takes on the shape of the...
Questions
question
Mathematics, 17.10.2021 04:20
question
Mathematics, 17.10.2021 04:20
question
Social Studies, 17.10.2021 04:20
question
Mathematics, 17.10.2021 04:20
question
Mathematics, 17.10.2021 04:20
question
Mathematics, 17.10.2021 04:20