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3 years ago

12

Round 0.0011675cg to four significant figures

1 answer:

atroni [7]3 years ago

8 0

Answer:

answer is 0.001168 is correct

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ololo11 [35]

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Complete and balance the following neutralization reaction Ca(OH)2 + H2SO4

Debora [2.8K]

Answer: Ca(OH)2 (aq) + H2SO4 (aq) ----------> CaSO4(aq) + 2H2O(l)

Explanation:

Since this is a neutralization reaction, the end product would be salt and water. In this equation Calcium will displace hydrogen from the acid because it is more reactive, resulting in the formation of CaSO4 (salt), while the displaced H2 molecule combines with OH molecules to form water.

The equation of the reaction is thus;

Ca(OH)2 (aq) + H2SO4 (aq) ----------> CaSO4(aq) + H2O(l), in other to balance it, we add ''2'' to the water molecule in the right hand side of the equation.

Balance equation is

Ca(OH)2 (aq) + H2SO4 (aq) ----------> CaSO4(aq) + 2H2O(l)

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3 years ago

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gladu [14]

#1

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#2

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As 3 electrons donated the no of electrons=23-3=20

#3

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