40. Which of the following contains the most of hydrogen ions? A 400 cm of 1 mol dm- sulphuric acid
B 700 cm of 1 mol dm- ethanoic acid
C 600 cm of 1 mol dm'hydrochloric acid
D 400 cm of 1 mol dm- sodium hydroxide​

The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?

Which of the following contributes to the structural rigidity of cellulose? adjacent glucose polymers are stabilized by hydrogen bonding. glucose residues are joined by (α1→4) linkages. cellulose is a highly branched molecule. the conformation of the glucose polymer is a coiled structure.

What is the wavelength of a wave with a velocity of 50 m/s and a frequency of 5hz a 250 m b 0.1 m c 10m d 0.01 m