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Citrus2011 [14]
3 years ago
11

I neeed help please help

Chemistry
2 answers:
Zina [86]3 years ago
8 0

To increase the rate of a reaction, you can increase the amount of surface area (so the third option).

By increasing the surface area, more particles become exposed and therefore it's more likely for there to be a higher rate of collisions between the reactant and the particles. Due to this, the rate of the reaction increases.

mina [271]3 years ago
7 0

A. Lowering the temperature.

I hope this helped!

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The percent yield of the calcium hydroxide is 84.5%.

<h3>What is stoichiometry?</h3>

Stoichiometry enables us to obtain the mass of a substance form the equation of the reaction.

The equation of the reaction is;

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2) The reaction equation is; 2NaOH + CaCO3 --->  Ca(OH)2 + Na2CO3

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Percent yield = 2.5 g/ 2.96  g * 100

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Learn ore about percent yield:brainly.com/question/17042787

#SPJ1

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