Answer:
Fe is the limiting reagent
Explanation:
Answer:
The correct option is' a'.
Diffusion is the movement when molecules move from higher concentrated area to lower concentrated area.
Explanation:
When a substance moves from higher concentrated area to a lower concentrated area, is called as diffusion.
It mainly occur in liquid and gaseous substance as their particle can easily move from one place to another.
Diffusion is important for living being as water enters into the plant body through the process of diffusion and during respiration, when the concentration of carbon dioxide is high then it diffuse out through the cell membrane and enters into the blood.
Answer:
allows for you to account for only the weight of the substance being measured and not the vessel it’s being measured in.
Explanation:
What does it mean to tare a balance and why do you think it is important to complete this before you begin measuring mass? Explanation: The term tare is used when weighing chemicals on a balance, using the tare button allows for you to account for only the weight of the substance being measured and not the vessel it’s being measured in.
Fe(NO3)2=0
Fe+2(+3+3*-2)=0
Fe+2*-3=0
Fe=-(-6)
Fe=+6
So, Fe=+6, N=+3, O=-2
Answer:
false
Explanation:
A combustion reaction is a burning process that occurs in the presence of an oxidant and a fuel. It is usually an energy releasing procedure in which the temperature of the environment is greater than that of the reactants.
Not all combustion reactions are redox reactions
In a redox reaction, one specie is oxidized and the other becomes reduced simultaneously.
Redox reactions are usually facilitated by the transfer of electron. One specie loses electrons to be gained by another specie.
Certain atoms in a combustion reaction will have to change their oxidation state.
During combustion, during combustion reaction, there is no transfer of electrons between reactants . None of the molecules changes oxidation state. For example;
CH₄ + 2O₂ → CO₂ + 2H₂O
The algebraic sum of all oxidation number of all atoms in a neutral compound is zero.
In the reaction above, all the atoms in going from reactants to products have a net oxidation number of zero.
carbon on both sides is 0
oxygen is 0
Hydrogen is 0
So there is no transfer electrons