What happens to an atom when it gets oxidized?
A. It’s oxidation state increases
B. It’s atomic number increases
C. its oxidation state decreases
D. It’s ionic charge decreases

A. It’s oxidation state increases

Explanation:

A chemical reaction that involves the moving of electrons is known as oxidation. In oxidation, an atom, molecule, or ion loses one or more electrons in a chemical reaction.

When oxidation occurs, an element loses electrons and its oxidation number increases (becomes more positive), this means the oxidation state of the chemical species increases.

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied