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When a reaction is in equilibrium, it means the rate of the forward reaction is equal to the rate of the backwards reaction. The concentrations of the reactants and products remain constant, but this does...

Metal + Acid --> Metal salt + H2 (g)E.g. Cu + HCl --> CuCl2 + H2

Answer= 0.144gWorking out:mol= conc x volume (in dm^3)mass = mol x RFFSo,mol = 0.18 x (20/1000) = 0.0036molMass= 0.036 x 40 = 0.144g

Nucleus- controls the activity of the cellMitochondria- site of aerobic respirationCytoplasm- site of biochemical reactions, including anaerobic respiration Cell membrane- Allows transport of materials in...

Biconcave discs- to increase surface area for oxygen carriage Haemoglobin- increases affinity for oxygen uptake at the lungs. However, at the respiring tissues, the increased CO2 concentration allow relea...