Question

CHEMISTRY
Class: 7
WORKSHEET - 1
1.Write the skeleton_equation_for_each_of_the following reactions. Then bala
nce each_of_the following chemical equations:
4._copper_+_Oxygen -> - Copper(II)_Oxide_
5._potassium_iodide_+_chlorine > _potassium_chloride_+_iodine_
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Answer 1

Answer:

1. Cu+O2 give CuO

2Cu +O2 gives 2CuO

2. KI+Cl2 gives KCl+I2

2KI+Cl2 gives 2KCl + I2

Answer 2

Answer:

1) Cu+O2==>CuO--->skeleton chemical eqn. 2Cu+O2==>2CuO--->balanced chemical eqn . 2) KI+Cl2 ==>KCl+ I2---> skeleton chemical eqn. 2KI+Cl2==>2KCl+I2---> balanced chemical eqn...... please mark it as a brainest ......