Answer:
The atomic number uniquely identifies a chemical element. It is identical to the charge number of the nucleus. In an uncharged atom, the atomic number is also equal to the number of electrons. The sum of the atomic number Z and the number of neutrons N gives the mass number A of an atom.
Explanation:
Answer:
D. Incinerating or incineration
Explanation:
Burning trash to reduce the amount of waste on land is called incineration.
Answer:
The double bond is shown conventionally by two lines joining the atoms. Each line represents one pair of shared electrons. Carbon dioxide, CO2 Ethene, C2H4 Ethene has a double bond between the two carbon atoms. A more sophisticated view of the bonding in ethene
Explanation:
Theoretical yield:
02 -> H2O
1mol -> 2mol
2mol -> 4mol
32g -> 72g
Theoretical yield = 72g
Percent yield = actual yield/theoretical yield * 100
= 33.1/72 *100
=45.97%
