Question

B. Name the following:
a. A reaction that gives out a lot of heat: ………………………………………………………………………………………
b. A reaction that takes in a lot of heat: ………………………………………………………………………………………….
c. The chemical substance that slows down oxidation: ……………………………………………………………………..
d. An alloy made from iron and carbon : …………………………………………………………………………………………..
e. The elements present in stainless steel are: …………………………………………………………………………………..
f. The black coat on silver when its surface is exposed to air: ……………………………………………………………
g. Bronze is an alloy of : ……………………………………………………………………………………………………………………..
h. A thin green layer formed on bronze surface over a long period of time: ……………………………………….
i. A green coating on copper surface: ………………………………………………………………………………………………….

Answer 1

Answer:

a. Exothermic reaction

b. Endothermic reaction

c. Chemical inhibitors

d. Steel

e. Carbon, Nickel, Molybdenum, Iron, Silver, Copper, Manganese, Chromium, etc,.,

f. Silver Sulphide

g. Copper and tin

i. Basic copper carbonate

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