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Explain Le Châtelier’s Principle.   (2 marks)

What is the maximum voltage that can be produced by an electrochemical cell with the following electrodes? a) Copper (I) and lead     (3 marks) b) Zinc and lithium     (3 marks)

Given the following reaction at equilibrium,  A + 3B  ↔  2C + 2D    ΔH = 20.91 kJ/mol The amount of C in the system can be increased by:

State the type of bond that forms between the following elements:   (1 mark each) a) N and O b) Ca and Br c) C and F

11.4 mL of 0.7 M NaOH was used to titrate 5.0 mL hydrochloric acid.  What is the molarity of the acid?

At a fixed temperature, H2(g), Cl2(g) and HCl(g) exist in equilibrium according to the equation: 2HCl(g) ↔ H2(g) + Cl2(g)         Ke = 0.040 In order to have 0.020 mol of Cl2(g) at equilibrium, how many moles of HCl(g) should be initially placed in an empty 1.0 L flask?

What precipitate, if any, could be formed if sodium chloride is mixed with silver sulphate?

Which majority group in the United States traditional definition of illness is process of disharmony attributed to demons and evil spirits. Pain is a sign of illness if no pain illness is gone.

Health education was the earliest form of organized health promotion.

Not literate in English is considered as one of the five levels of health literacy.