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Category > Chemistry Posted 19 Jun 2017 My Price 5.00

What is the free element in the following chemical reaction?

Question 1

What is the free element in the following chemical reaction?

KClO3 (s) → KCl (s) + O2 (g)

a.potassium

b.chlorine

c.oxygen

d.all of the above

e.there is no free element

 

Question 2

Which of the following elements have an oxidation number of -1?

a.sodium

b.chlorine

c.flourine

d.bromine

e.b,c, and d

 

 

Question 3

Which of the following have an oxidation number of +2?

a.helium

b.sodium

c.potassium

d.magnesium

Answers

SuperTutor
(15)
Status NEW Posted 19 Jun 2017 02:06 AM My Price 5.00

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