Q is a solution containing 4.2g hydrogen chloride acid in 250cm³. If 16.20cm³ of Q completely neutralized 25cm³ of R(sodium hydroxide solution). Calculate a. concentration of the alkalis in mol/dm³. b. the volume of Q that will neutralize a solution containing 0.25mols of R in cm³. NaOH + HCl NaCl + H2O.​

Imagine if during the cathode ray experiment, the size of the particles of the ray was the same as the size of the atom forming the cathode. which other model or scientific observation would have also been supported? 1. this would support dalton's postulates that proposed the atoms are indivisible because no small particles are involved. 2. this would support bohr's prediction about electrons moving in orbits having specific energy. 3. this would support bohr's prediction about electrons being randomly scattered around the nucleus in the atom. 4. this would support dalton's postulates that proposed that atoms combine in fixed whole number ratios to form compounds.