Write chemical formula for
a) calcium oxide
b) baking powder
c) potassium sulphate

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Solution

$a) C a l c i u m o x i d e C a^{2} O^{2} C r o s s m u l t i p l y C a_{2} O_{2} = C a O b) B a k i n g p o w d e r - s o d i u m b i c a r b o n a t e N a^{1} H C {O_{3}}^{1} C r o s s m u l t i p l y N a_{1} (H C O_{3})_{1} = N a H C O_{3} c) P o t a s s i u m s u l p h a t e K^{1} S {O_{4}}^{2} C r o s s m u l t i p l y K_{2} S O_{4}$

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Write chemical formula for a) calcium oxide b) baking powder c) potassium sulphate

a) Calcium oxideCa2O2Cross multiply Ca2O2 = CaOb) Baking powder - sodium bicarbonateNa1HCO31Cross multiplyNa1(HCO3)1 = NaHCO3c) Potassium sulphateK1SO42Cross multiplyK2SO4

Write chemical formula for
a) calcium oxide
b) baking powder
c) potassium sulphate