Answer C
I could be wrong
Explanation
Cold blooded animals are not warm themselves, so they use the energy from the sun to get warm.
Answer:
The answer is B) No.
Explanation:
The equation balanced is:
2 FeCl₃ + 3 MgO → Fe₂O₃ + 3 MgCl₂
Equation balancing can be done by "trial and error" or by algebraic method.
In this way the equation is balanced on both sides having:
2 atoms of Fe, 6 of Cl, 3 of Mg and 3 of 0.
840 test tubes will be required in total for all the students for the 6 chemistry classes.
This is a word problem, so we need to deduce the facts;
Each student = 5 test tubes
So, 28 students will need 5 x 28 test tubes = 140 test tubes
140 test tubes are needed for the 28 students for a single chemistry class.
Therefore, for 6 chemistry classes;
Total test tubes = 140 x 6
Total test tubes = 840
For the 6 chemistry classes, a total of 840 test tubes will be needed.
Read more on word problem: brainly.com/question/29797698
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