I would believe sunlight to be an independent variable as the sunlight is the control of the whole experiment. You can tell because he placed one in a dark area and the other in a sunny area.
The dependent variable would be: Growth
Controls: The air-conditioning in both rooms
It is not constant because this would be the variable that would remain the same, for example, the type of plant was kept the same.
Hope this helps c:
Answer:
Electrolyte
Explanation:
The electrolyte does because it dissociates into ions.
Answer:
There are two dots are present on the left side of calcium atom which represents the unpaired electrons present in the outermost shell. This structure is presented by Lewis in order to show the number of unpaired electrons in the atom.
Explanation:
Answer:
41 g
Explanation:
The equation of the reaction is;
Cr(NO3)3(aq)+Na3PO4(aq)=3NaNO3(s)+CrPO4(aq)
Number of moles of chromium nitrate = 37g/ 146.97 g/mol = 0.25 moles
1 mole of sodium phosphate reacts with 1 mole of chromium nitrate
x moles of sodium phosphate react as with 0.25 moles of chromium nitrate
x= 1 × 0.25/1
x= 0.25 moles
Mass of sodium phosphate = 0.25 moles × 163.94 g/mol
Mass of sodium phosphate = 41 g
It works by moving the water molecules to the place of low concentration until it reaches equilibrium.
hope it helps