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MAXImum [283]
2 years ago
14

Please show work: Question below

Chemistry
1 answer:
ozzi2 years ago
3 0

Answer:

b) 2.0 mol

Explanation:

Given data:

Number of moles of Ca needed = ?

Number of moles of water present = 4.0 mol

Solution:

Chemical equation:

Ca + 2H₂O     →      Ca(OH)₂ + H₂

now we will compare the moles of Ca and H₂O .

                          H₂O        :        Ca                

                             2           :        1

                             4.0           :       1/2×4.0 = 2.0 mol

Thus, 2 moles of Ca are needed.      

         

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<h3>What are Limiting Reactants?</h3>

Limiting reactant(s) as the name implies are reactants whose availability is limited and hence, the the rate at which products are formed is limited subsequently.

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brainly.com/question/14222359

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