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klio [65]
3 years ago
15

1. What is the colour of FeSO4.7H20 crystals?How does this colour change upon heating? Give balanced

Chemistry
1 answer:
svet-max [94.6K]3 years ago
5 0
<span>1. What is the colour of FeSO4.7H20 crystals?How does this colour change upon heating?

</span><span>Melanterite or FeSO4.7H20 is green in color
</span>2FeSO4 ---> Fe2O3 + SO2 + SO3<span>

2. a. What are redox reactions?
It </span><span>is a type of chemical </span>reaction<span> that involves a transfer of electrons between two species. 
</span><span>
b.Why is the reaction between MnO2 and HCl a 
redox reaction?
Because there are atoms that are reduced and are oxidized.

c.Identify the substance oxidized and the 
substance reduced in the above reaction.

</span>MnO2<span> + 4 </span>HCl<span> ---> MnCl2 + 2H2O + Cl2
</span>Mn was reduced and Cl was oxidized
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