First, need to know the formula of Molarity.
moles of solute
Molarity = ---------------------------
liters of solution
Given
2.0 liter of solution
58 grams of NaCl
Base of my research the moles of 58 grams of NaCl is 0.750 moles
Solution
0.750 moles
Molarity = ----------------------- = 0.375
2.0 L
The molarity of this solution is 0.375
Answer:
Combustion.
Explanation:
When burning a hydrocarbon (CxHy) with Oxygen the products are Carbon Dioxide and Water.
Hope this will help
I think it’s B
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Answer:</h3>
C. A change in concentration results in a change in the rate of a
reaction
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Explanation:</h3>
We first need to know what is the rate of a reaction;
- The rate of a reaction refers to the speed at which reactants are converted to products.
Secondly we need to identify several factors that affect the rate of reactions.
- The rate of reactions depends on a number of factors which include, surface area of reactants, concentration of both reactants and products, temperature, presence of a catalyst, etc.
Thirdly, understand the effect of concentration of reactants and products on the rate of reaction.
- If we consider the concentration of reactants and products;
- An increase in the concentration of reactants increases the number of collisions which results to an increase in the rate of reaction.
- On the other hand, when the concentration of products is increased, the rate of reverse reactions increases for reversible reactions while a decrease in the concentration of reactants favors forward reaction.
Therefore, in our case, we can say that, a change in the concentration of either reactants or products results in a change in the rate of a reaction.
