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:
A. MnS(s) + 2H + (aq) > Mn2 + (aq) + H2S(g)
Since the chemical definition of "stable" means close to having a full valence shell, the answer is 3d^10.
Answer:The mole ratio is A:B:A+B
Explanation:when substance reacts according to John Dalton's theory,their combining ratio is often a replica of the combining moles of the reactants and that of the products. So when Amoles of X combines withB moles of Y ,they produce A+B moles of XY to get a balance reaction e.g if 1moles of X2 reacts with 1moles of Y2 to form XY
The balance equation is seen as
X2+Y2_____2XY
Answer: "The reactants are higher in energy than the products"
Explanation:
The exothermic reactions are characterized by the release of heat to the surroundings. The reactants lose heat that is delivered to the surroundings which implies that the products will be lower in energy than the reactants.
The hills that you can see in a reaction energy diagram are not related with the final change of energy. The hills are an indication of the activation energy needed to start the reaction, but they do not measure the change of energy from the products to the reactants.
The enthalpy that is a state variable that identifies the content of heat. Then the change of enthalpy for the exothermic reactions is negative, meaning that the energy of the products is lower than the energy of the reactants.