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Increasing the surface area of the reactant by pelletizing the calcium carbonate, and increasing the concentration of hydrochloric acid resulted in increase in the rate of reaction.
<h3>What is reaction rate?</h3>
Reaction rate refers to the rate at which reactant molecules are consumed or the rate at which product molecules are formed.
The factors that affect reaction rate include:
- Temperature
- Concentration
- Surface area of reactants
- Nature of reactants
- Presence of catalysts
Given an experiment to determine effect of surface area of reactants and concentration on reaction rate of dilute hydrochloric acid and calcium carbonate:
It was observed that increasing the surface area of the reactant by pelletizing the calcium carbonate and increasing the concentration of hydrochloric acid made the reaction proceed faster.
In conclusion, reaction rate increases with increase in surface area.
Learn more about factors affecting reaction rate at: brainly.com/question/14817541
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The answer for the following question is mentioned below.
+3 
→2 
+2 
the equation is balanced.
Explanation:
The steps required to balance a chemical equation is:
Firstly,write the formula of the compound/substance.
Secondly,count the number of atoms in each element on each side of the equation
Thirdly,Adjust the co-efficient.Balance the atoms or the ions present in the greatest number.
You may do this by finding the lowest common multiple of two.
Continue systematically to balance the atoms or ions on the rest of the side (i.e.)on the other side.
Lastly,check the number of atoms each elements is same on both the sides
From the equation:
Before balancing the equation:
+ → +
After balancing the equation:
+3 →2 +2
Therefore the given equation is balanced.
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