Answer : Any natural sources of CFC's are not known only the major sources like aerosols, propellants, refrigerants,etc are known. So, if any natural sources are given then it cannot be called as a major source for emitting CFC into environment.
Answer:
Electrons do not follow specific paths, so the area in which an electron is more scientifically accurate is at the orbitals.
Explanation:
As we know in an atom various electrons are present, they are filled in the orbitals in order to decrease the energy of the atom. These electrons inside the orbitals are arranged from smaller to larger. The lowest one is filled first, the order in which energy is filled is like 1s, 2s, 2p,3s3p,4s,3d etc. The electrons that present far away from the nucleus have the highest energy, the electrons present in the first orbital from the nucleus hold less energy.
Answer:
+4
Explanation:
The oxidation number of C in carbon dioxide (CO2) is (rules 1 & 2): 0 + (2 x 2) = +4 [Check (rule 3): +4 + 2(-2) = 0] The oxidation number of C in methane (CH4) is (rules 1 & 2): 0 – (4 x1) = -4 [Check (rule 3): -4 + 4(-1) = 0].
The student would fill out the second row, stating that the volume increases as the temperature increases.
This phenomenon is in accordance with Charles's law, which states that for a fixed amount of gas at a constant pressure, the volume of the gas is directly proportional to the absolute temperature of the gas. All three of the gas laws are combined to form the ideal gas law.
Answer:
The bolts will run out first, so these will limit how much product can be formed.
(option C is correct)
Explanation:
Step 1: Data given
Number of bolts = 5
Number of nuts = 12
ratio N:B = 2:1
Step 2
Since the ratio N:B is 2:1 we have 2 nuts for each bolt
When we have 2 bolts we have 4 nuts
When we have 3 bolts we have 6 nuts
When we have 4 bolts we have 8 nuts
When we have 5 bolts we have 10 nuts
We don't have more bolts, but there are still 2 nuts left. This means the bolts will run out first, so these will limit how much product can be formed.
(option C is correct)
