Search over 10,000 free study notes

Number of moles = (0.5 x 100)/1000 = 0.05 moles (1 mark)Molar mass, M, of NaOH = 23 + 16 + 1 = 40 (1 mark)Mass of NaOH needed = moles x M = 0.05 x 40 = 2g (1 mark)correct answer alone scores 3 markscorrec...

Each of the seven scale degrees in the major and minor scales has been given a fancy name:TonicSupertonicMediantSubdominantDominantSubmediantLeading toneThese names are often used when re...

India
Rapid development has led to both positive and negative social, economic and environmental impacts in India. Rapid development has led to improved health care which has positive social impacts ...

These pumps use ATP / active transport to move 3 sodium ions (Na⁺) out of the cell for every two potassium ions (K⁺) that move in.1 mark - idea of active transport / use of ATP1 mark...

1. ×2 --> 4x + 14y = 241) - 2) --> 4x + 14y - 4x = 24 - 14 - (-4y) 14y = 10 + 4y10y = 10 --> y = 14x = 14 - 4 (1)x = 10/4 = 2.5x = 2.5 & y= 1