Category: GRADE 12 PHYSICAL SCIENCES

grade 12 acid and base questions


QUESTION 7 (Start on a new page.) 7.1 Nitric acid (HNO3), an important acid used in industry, is a strong acid.7.1.1 Give a reason why nitric acid is classified as a strong acid. (1)7.1.2 Write down the NAME or FORMULA of the conjugate base…

Work energy & power questions


Two stationary steel balls, A and B, are suspended next to each other by massless, inelastic strings as shown in Diagram 1 below. Ball A of mass 0,2 kg is displaced through a vertical distance of 0,2 m, as shown in Diagram 2 above….

Angular projectile motion


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Vertical projectile motion


The nature of reactants


Aim To determine the effect of the nature of reactants on the average rate of a reaction. Apparatus You will need the following items for this experiment: Oxalic acid ((COOH)2), iron(II) sulfate (FeSO4), potassium permanganate (KMnO4) and concentrated sulfuric acid (H2SO4) a spatula, two test tubes, a medicine dropper,…

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