Question Which substance contains the greatest number of atoms in 1 g?iodine (I2); iron (Fe)…
Tag: chemical equations
At O levels, students must be able to describe, using dot-and-cross diagrams, the formation of…
Question Sodium hydroxide reacts with sulfuric acid. The equation for the reaction is shown.2NaOH +…
When heated, two moles of X give one mole of oxygen and two moles of…
The formula of an oxide of element Y is Y2O3. 8.0 g of Y2O3 contains…
The table in the question shows details of the particles present in an atom of…
Question Acid rain contains sulfuric acid and can cause lakes to become acidic. Acidic lakes…
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