Chemistry, 25.02.2021 18:20 nancyrj3824
A teacher wants to perform demonstration that illustrates both chemical and physical changes. Which would be the best demonstration that she could use? A) bending a piece of aluminum B) breaking a matchstick C) dissolving sugar in water D) burning a candle
Answers: 1
Chemistry, 21.06.2019 20:10
What can be added to the examples section of each circle? endothermic: ice melting into water, and a heat pack becoming warm exothermic: a glow stick glowing, and fireworks exploding endothermic: ice melting into water, and an instant ice pack turning cold exothermic: fireworks exploding, and gasoline burning endothermic: a glow stick glowing, and a heat pack becoming warm exothermic: an instant ice pack turning cold, and ice melting into water endothermic: gasoline burning, and an instant ice pack turning cold exothermic: ice melting into water, and an instant ice pack turning cold
Answers: 1
Chemistry, 22.06.2019 04:30
The big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.
Answers: 1
Chemistry, 22.06.2019 07:40
The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder
Answers: 3
Chemistry, 22.06.2019 12:30
Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?
Answers: 3
A teacher wants to perform demonstration that illustrates both chemical and physical changes. Which...
Mathematics, 22.10.2020 20:01
Mathematics, 22.10.2020 20:01
Mathematics, 22.10.2020 20:01
Mathematics, 22.10.2020 20:01
Social Studies, 22.10.2020 20:01
Mathematics, 22.10.2020 20:01
Mathematics, 22.10.2020 20:01
Mathematics, 22.10.2020 20:01
Biology, 22.10.2020 20:01
Chemistry, 22.10.2020 20:01
History, 22.10.2020 20:01
History, 22.10.2020 20:01