Answer:
Temperature of the water
Explanation:
In every study, there must be independent and dependent variables. An independent variable is the variable that is changed in order to obtain a response. In this case, the temperature of the water is being changed, the response in this experiment is the respiration rate of the goldfish.
Thus the respiration rate of the goldfish is the dependent variable because it is controlled by the temperature of the water and changes accordingly.
Summarily, the independent variable is the temperature of the water while the dependent variable is the respiration rate of the goldfish.
Answer:
The answer is c) charged balloon
Answer:
The solubility of a substance in water increases as the temperature rises, especially for gases.
The solubility of a substance in water with temperature generally increases for ionic solids.
Explanation:
Solid substances dissolved in liquid water, the solubility increases with temperature. Gases tend to naturally have high entropy or kinetic energy than solid substances so the same still applies.
This phenomenon is due to the increase in kinetic energy acquired by the particles of the solid at higher temperatures which allows the solvent molecules to effectively break apart the solute molecules that are held together by intermolecular attractions
I hope I am right on this, but the answer is
Fe₂O₃ + 3CO --> 2Fe + 3CO₃
