Copper sulfate + water - Copper oxide + sulfuric acid, Iron nitrate + water - Iron oxide + nitric acid, Magnesium chloride + water - Magnesium oxide + hydrochloric acid, Potassium ethanoate + water - Potassium oxide + ethanoic acid,

लीडरबोर्ड

दृश्य शैली

विकल्प

टेम्पलेट स्विच करें

ऑटो-सेव पुनःस्थापित करें: ?