Answer:
O2 has a double covalent bond
H2 has a single covalent bond
N2 has a triple covalent bond
Explanation:
Hydrogen atoms form only one covalent bond because they have only one valence electron to pair.
Since two electrons form each bond, there are a total of two pairs, or four electrons, in the bond.
The N2 Lewis structure has a triple bond between two nitrogen atoms. According to the octet rule, nitrogen atoms need to bond three times.
Chloroplasts in the leaves
the name of the fourth dog is:
what lol so tricky
Answer is: The total energy in the system remains the same as the decrease in chemical energy equals the increase in thermal and radiant energy.
The law of conservation of energy states that the total energy of an isolated system remains constant; energy can neither be created nor destroyed; it can only be transformed or transferred from one form (in this example chemical energy) to another (in this example thermal and radiant energy).
Radiant energy or light is the only kind of energy we can see with our eyes. Light have different wavelenght and different color.
Chemical energy - this type of energy is often found in things like batteries or food.