1. what is the colour of feso4.7h20 crystals? how does this colour change upon heating? give balanced
chemical equation for the changes.
2. a. what are redox reactions?
b. why is the reaction between mno2 and hcl a
redox reaction?
c. identify the substance oxidized and the
substance reduced in the above reaction.
3. balance the chemical equation: -
fe(s) + h2o(g)=fe3o4(s) + h2(g)
4. explain why:
a)respiration is an exothermic reaction.
b)all decomposition reactions are endothermic
reactions.
Answers: 3
Chemistry, 23.06.2019 00:30
On the periodic table, elements are arranged by which of the following. a. mass numbers. b. increasing atomic number. c. alphabetical order. or d. density
Answers: 1
Chemistry, 23.06.2019 01:00
Na chemical reaction, activation energy increases the of the reactants. this outcome causes the particles to collide, which results in the of new products.
Answers: 2
1. what is the colour of feso4.7h20 crystals? how does this colour change upon heating? give balanc...
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