Explanation:
Electrical energy is the energy produced due to flow of electrons.
Whereas a reaction in which oxidation and reduction reaction takes place is known as a redox reaction. Basically, there is exchange of electrons that take place in a redox reaction.
For example,
Oxidation half reaction:
Reduction half reaction:
Hence, this flow of electrons acts as a source of electrical energy.
Answer: Boiling point
Explanation:
Boiling point is the temperature where the vapor pressure of a liquid equals the pressure of the gas present above it.
The normal boiling point of a liquid is the temperature at which its vapor pressure is equal to one atmosphere.
Boiling point depends on the intermolecular forces present between the molecules. More are the intermolecular forces, lesser will be the vapor pressure and thus more heat will be supplied to make vapor pressure equal to the atmospheric pressure. Thus higher will be the boiling point.
Normal boiling point for water is .
To what element does the following electron configuration correspond?
1s22s22p4
A. aluminum: 13 electrons
B. oxygen: 8 electrons
C. boron: 5 electrons
Answer: the canola oil.
Explanation:
According to the melting points reported, at 5°C canola oil, whose melting point is 10°C, will freeze (become solid), while the other three, corn oil, sunflower oil, and peanut oil, having melting points several degrees below 5°C, will remain in liquid state.
Therefore, by decantation or filtration, which are processes that permit separate solids from liquids in a mixture, you can separate easily the solid canola oil from the other three liquid oils.
After separating the canola oil, If you continue cooling the mixture and reach a temperature of - 5°C. the peanut oil, whose melting point is -2°C, whill freeze and you will be able to separate it (again by decantation or filtration).
The same operation, cooling a third time until a temperature around 12°C, will permit you to separate the remaining two oils.
As you see, the knowledge of the physical properties of the substances is a useful tool to separate mixtures.
AgC2H3O2(aq) + CaCl2(aq) →
Answer:
2Ag^+(aq) + 2Cl^-(aq) --------> 2AgCl(s)
Explanation:
The net ionic equation reflects the main reaction that occurred in the system. It tells you the most important reaction that took place.
If we first put down the balanced molecular equation for the reaction, we have;
CaCl2(aq) + 2 AgC2H3O2(aq) ---------> 2 AgCl(s) + Ca(C2H3O2)2 (aq)
The net ionic equation is;
2Ag^+(aq) + 2Cl^-(aq) --------> 2AgCl(s)
(2) 2 ppm (4) 0.02 ppm