That's a compound
The Cu stands for Copper, and the O stands for oxygen
Answer:
A
Explanation:
The correct answer would be that<u> the group being given the sugar pill is being used as the control group.</u>
In a typical experimental study, there are two groups of subjects:
1. The treatment or the experimental group
2. The control group
<em>The treatment group receives the treatment variable while the control group does not receive or is given a placebo. Thus, the control group act as the reference group for comparison basis. Any difference in the observation between the two groups would be attributed to the treatment variable.</em>
The correct option is, therefore, A.
I believe the precipitate that would most likely form between this double replacement reaction would be
Copper (II) Sulphide. CuS.
It was made from the same material?