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Lana71 [14]
3 years ago
15

Consider the reaction below. 2Al2O3 mc031-1.jpg 4Al + 3O2 How many moles of oxygen are produced when 26.5 mol of aluminum oxide

are decomposed?
Chemistry
2 answers:
densk [106]3 years ago
5 0
2Al₂O₃ ----> 4Al + 3O₂
2 moles               3 moles

2 moles of Al₂O₃ ---------- 3 moles of O₂
26,5 moles of <span>Al₂O₃ ------ X
</span>X = (26,5×3)/2
<u>X = 39,75 moles</u> of O₂

:)


Ray Of Light [21]3 years ago
3 0

Answer:

the answer is 3;4

Explanation:

i did the Assignment on edge

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5 0
3 years ago
What is the specific heat of a substance if 1560 cal are required to raise the temperature of a 312-g sample by 15°C?
Oksanka [162]
The specific heat capacity  the substance is calculated  using  the below formula

Q(heat) = Mc delta T
Q =1560  cal
m(mass) 312 g
delta T (change in temperature ) = 15 c
C= specific heat capacity=?

by making c the subject of the formula 
c=Q/m delta T
= 1560  cal/ 312g x 15 c = 0.33 cal/g/c (answer B)


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