Explain what happens to the atoms in the reactants during a chemical reaction

What object a collides with object b and bounces back its final momentum is?

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.

What is the freezing point of radiator fluid that is 50% antifreeze by mass? kf for water is 1.86 ∘c/m.