Question

2. Fill in the blanks with suitable words :
1. P.betochemical reactions involve absorption of sun's energy.
2. Substances burn at a temperature known as
3. Petrol, LPG, kerosene are
..... substances.
.............. water on electrolysing decomposes to hydrogen and oxygen.
.......
+
......
+
....
.
.
.
.
.
.
Complete and balance the following equations giving the conditions necessary for th
1. NH4Cl(s)
2. KNO3
3. CaCO3
4. 302
5. Mg + N2
+
.
O
.
ORO..​

Answer 1

Answer:

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