You can cut down trees with your lawnmower. Warning: Do not actually try to cut down a tree with your lawnmower. More than likely, the gas in the chainsaw is mixed with 2-cycle oil. If your mower also has a 2-cycle engine, nothing will happen. If your mower has a 4-cycle engine, the engine will probably smoke (bluish in color) until the oil is burnt up during combustion. At worst, the oil in the 2-cycle oil/gas mixture will foul up the spark plug and you will probably have to clean it pretty often until the oil is burnt up.
You get engine damage from lack of lubrication
if its regular gas
to put the oil in the lawnmower's crankcase would be fine, so long as it is an appropriate viscosity.
Apparently you didn't crank it up. You are still here. Nothing except it may clean out some old dirty oil. Remove the gas and the oil and discard same. Refill the oil section and refill the gas tank. Don't do that again.
Yes it is possible to do that.
The engine floods and you have to wait for the lawnmower to drain before you start it up again or it might start smoking.
put a bomb in it or you can pour gas all over it and set it on fire
Drain the oil and gas out of the crankcase and put oil back it should be OK
It is difficult to start and emits a smelly white smoke once running.
nothing
If the lawnmower has two compartments one for gas and the other for the oil, then put gas in the gas and a 30w type oil in the oil compartment. Simple as that. If you have an engine with only one compartment then you'll need to check on the manufacturers suggestions which is usually 40:1 or something close.
pancake sryup is my gas tank, what do i do?