subject
Chemistry, 19.01.2021 09:20 iamsecond235p318rq

Charlotte completed an experiment in which she investigated and discovered that an electrically charged object can attract an uncharged object without any contact. She used a PVC pipe and small pieces of paper for her experiment. Each time, she rubbed the PVC pipe with a cloth to give it a charge and then held it over paper. What would be Charlotte's control group in this experiment? 1. Using the cloth and rubbing it against the PVC pipe
2. Taking the pieces of paper and rubbing it against the cloth
3. Not rubbing the cloth against the PVC pipe or the paper
4. Rubbing the cloth against both the paper and the PVC pipe

ansver
Answers: 1

Another question on Chemistry

question
Chemistry, 22.06.2019 09:30
What is the molar mass of potassium nitrate, kno3
Answers: 1
question
Chemistry, 22.06.2019 11:00
As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter
Answers: 3
question
Chemistry, 22.06.2019 17:00
In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added
Answers: 1
question
Chemistry, 23.06.2019 01:30
The biomedical technique in which a part of the brain is destroyed with electric current is known as a. electroconvulsive therapy b. prefrontal lobotomy c. bilateral cingulotomy d. tardive dyskinesia
Answers: 2
You know the right answer?
Charlotte completed an experiment in which she investigated and discovered that an electrically char...
Questions
question
Mathematics, 18.01.2020 05:31
question
Mathematics, 18.01.2020 05:31
Questions on the website: 13722362