Social Studies, 07.11.2020 03:00 cathydaves
An experiment is performed in which a crystalline substance is added to a beaker filled with room-temperature water. The following observations were made:
1. The crystals dissolve.
2. A precipitate forms.
3. The bottom of the beaker feels warm to the touch.
4. Bubbles begin to form in the water.
Which observations are evidence that a chemical reaction took place?
Give a explanation.
Answers: 2
Another question on Social Studies
Social Studies, 22.06.2019 02:30
Which of these describes the most important popular jobs in the new england colonies
Answers: 1
Social Studies, 22.06.2019 03:30
How does specialization enable countries to trade with one another? a country can make and sell goods affordably and buy goods that it is inefficient at making. a country can make what it chooses and sell its goods to other countries. a country can decide to buy everything it needs from other countries. a country can efficiently make goods that were once difficult to make.
Answers: 1
Social Studies, 22.06.2019 19:30
According to the aztec history, how did the aztecs know where to build their new city of tenochtitlan? why was this a good location?
Answers: 1
Social Studies, 23.06.2019 12:30
Explain the experience of an immigrant to the united states. where did they live and work? what struggles did they face?
Answers: 1
You know the right answer?
An experiment is performed in which a crystalline substance is added to a beaker filled with room-te...
Questions
Mathematics, 29.08.2019 14:00
Mathematics, 29.08.2019 14:00
History, 29.08.2019 14:00
English, 29.08.2019 14:00
Mathematics, 29.08.2019 14:00
Mathematics, 29.08.2019 14:00
Health, 29.08.2019 14:00
History, 29.08.2019 14:00
Mathematics, 29.08.2019 14:00
Social Studies, 29.08.2019 14:00
Health, 29.08.2019 14:00
