1) Two particles can react together only if they collide and the collision has enough energy to be successful.
2)
a) A successful collision is when two particles collide with enough energy and the correct orientation to undergo a chemical reaction.
b) An unsuccessful collision is when two particles collide but do not have enough energy or the correct orientation to undergo a chemical reaction.
3)
a) The reaction between magnesium and acid speeds up when the concentration of the acid is doubled because there are more acid particles available to collide with the magnesium particles, increasing the chance of a successful collision.
b) The reaction speeds up when the temperature is raised because the particles have more kinetic energy, leading to more frequent and successful collisions.
c) Stirring the acid increases the rate of reaction because it disperses the acid particles and brings fresh reactant into contact with the magnesium particles, increasing the chance of collisions.
d) Grinding the metal to a powder increases the rate of reaction because it increases the surface area of the metal, allowing more particles to come into contact with the acid and increasing the chance of successful collisions.
) Copy and complete:
Two particles can react together only if they …… and the …… has enough …… to be …….
2) What is meant by:
a a successful collision?
b an unsuccessful collision?
3) Reaction between magnesium and acid speeds up when:
a)the concentration of the acid is doubled. Why?
b) the temperature is raised. Why?
c) the acid is stirred. Why?
d) the metal is ground to a powder. Why
1 answer
2 answers