20 kg*m/s because there is 2 kg mass and 10 m/s so you can multiply.
Mater doesn't just appear or disappeared. Chemical elements are still there just the connections and how it combines changes.
So what goes into your chemical eqation must still exist after the change.
Answer:
That's almost the true
Explanation:
it does not happen all the time
D, 0.140 liters! Hang on a sec and I'll show you a trick I use.
