Imagine a kid sitting in a soap box. The moment it tosses a stone away to the left, the soap box, along with the kid, moves to the right. If the kid pushes against the stone with a force of 20 N in the moment of the toss, what will be the acceleration of the system kid+soap box? The kid's mass is 50 kg and the soap box's 10 kg.

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

the answer is 303.15 or 303

the cold front replaces the warmer air at the ground level changing the wind to be breezy and denser.there is also an immediate drop in the temperature.