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Zina [86]
3 years ago
10

If Hydrochloric Acid and Calcium Carbonate were combined would the reaction that occurs be endothermic or exothermic? Why?

Chemistry
1 answer:
slamgirl [31]3 years ago
4 0

Answer:

endothermic

Explanation:

more energy is being released and heat is being required to do the process.

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Which statement best describes John Dalton’s use of creativity in his work?
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The atoms of platinum and silver are identical (true or false)
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Answer:

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Homelearning
kirill115 [55]

Answer:

Number of moles of Fe = 10 mol

Number of moles of CO₂ = 15 mol

Explanation:

Given data:

Number of moles of iron oxide = 5 mol

Number of moles of carbon monoxide = 25 mol

Number of moles of product = ?

Solution:

Fe₂O₃ + 3CO   →  2Fe + 3CO₂

Now we will compare the moles of reactant with product.

                  Fe₂O₃        :         Fe

                     1             :          2

                    5             :         2×5 = 10 mol

                Fe₂O₃        :         CO₂

                     1             :          3

                    5             :         3×5 = 15 mol

                  CO           :         Fe

                     3             :          2

                    25             :         2/3×25 = 16.7 mol

                  CO            :         CO₂

                     3             :          3

                    25             :         25

Less number of moles of Fe and CO₂ are formed by iron oxide thus it will act as limiting reactant while CO is inn excess.

                 

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3 years ago
Rocks are classified according to their composition and color. true or false
il63 [147K]
True :)

Hope I helped :)
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