EXERCISE 1. Describe the effect of each of the following on the rate of the reaction of:
a) magnesium metal with a solution of hydrochloric acid
b) the molarity of the hydrochloric acid
C) the temperature of the solution
d) the size of the pieces of magnesium.
2. For each of the following situations, state whether the rate of the reaction
would increase or decrease, and explain your answer using the collision theory.
a) The concentration of a reactant is doubled.
b) The reaction is moved from a lab bench at room temperature into an ice
bath.
c) A solid crystalline reactant is broken down into smaller pieces with a
hammer.​

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true

In a copper wire, a temperature increase is the result of which of the following

The last few miles of the marathon are the most difficult for heather, her hair plastered to her head, sweat clinging to her arms, and her legs already feeling as if they had nothing left, just dead weight. after grabbing a cup of ice water, she feels the ice cubes smash against her nose as she gulps some cool refreshment and keeps on running. in these last few miles, the breeze kicks up and she finally feels some coolness against her skin. drips of sweat, once clinging to her forehead, now spill down, and heather feels more pain as the sweat flows into her eyes. which of the following is the most likely reason why the ice struck heather’s nose when she took a drink? a) water can function as a solvent. b) water can store large amounts of heat. c) water can moderate temperatures through evaporative cooling. d) the density of water decreases when it freezes. e) water has a cohesive nature. sweat remained on heather’s forehead and arms because of the a) high salt content of sweat b) cohesive nature of water c) ability of water to moderate heat d) high evaporative cooling effect of water e) ability of water to act as a solvent