You've just returned to school from spring break and all of the plants in your classroom are wilted and looking bad. What do you
1 answer:
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Answer: the speed at which products form
Explanation:
Rate of a reaction is defined as the speed at which a chemical reaction proceeds. It is often expressed in terms of the concentration of a reactant that is consumed in a unit time or the concentration of a product that is formed in a unit of time.
For a general reaction :
or
where d[A] = change in concentration of reactant A
d[B] = change in concentration of product B
dt = time interval
Answer: The temperature is there to confuse you on purpose. Density changes with temp, but in these type of problems, they mean nothing
Explanation:
The formula for density is mass per unit of volume.
We dont have to do any conversions here so it boils down to division and multiplication.
Now for the second part:
Answer:
C
Explanation:
Please see the attached picture for the explanation.
<u>Le Châtelier's principle</u><u>:</u>
When a stress is applied to a system at equilibrium, the system will respond by shifting in the direction that opposes/ minimizes the effect of the stress.
• This stress could be the addition or removal of a product or reactant, changes in the concentration of the products or reactants, or a change in temperature.
☆ Why can heat be written on the same side of the products when the reaction is exothermic?
• Exothermic means that heat is released, thus heat can be treated as a product.
• I like to remember it as Exothermic → Exit
