How does concentration affect the rate of reaction?

It's like rugby 7s and 15s

Rugby 7s has only 7 players from each each team playing, so the game is mostly centered about dodging with the ball and there is a lesser chance of getting tackled. Rugby 15s on the other hand, has the same field, but more people in the field, instead of 7, it's 15 from each side. Now there is a high possibility of getting tackled if you have the ball.

"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."