O2 is an element As it contains just one kind of atom, O2 is an element,
Answer:the CO2 molecule has an excess of electron
Answer:
True
Explanation:
The majority of the reactions happened with a flow of heat. When there's no heat, the reaction is adiabatic.
For no adiabatic reactions, the heat can be released (evolution) by the system, so the reaction will be exothermic, or absorbed by the system (absorption), then the reaction is called endothermic.
Answer:
CH2- CH3
|
CH3 - CH2 - C - CH - CH2 - CH2 - CH3
| |
CH3 CH3
Explanation:
Heptane
CH3 - CH2 - CH2 - CH2 - CH2 - CH2 - CH3
3 ethyl 3, 4 dimethylheptane
CH2- CH3
|
CH3 - CH2 - C - CH - CH2 - CH2 - CH3
| |
CH3 CH3
