324 



Index 



Oxidation attended by gain in 

 weight, 229; of food, 227 



Oxides, acidic, 309; basic, 309; 

 neutral, 261 



Oxy-acids, 312 



Oxygen, action on iron, 259, 

 phosphorus, 230, 257, sodium, 

 257; as acid -producer, 257, 

 258; as supporter of combus- 

 tion, 255, 284 ; boiling-point of, 

 304 ; derivation of name, 257 ; 

 dissolved in water, 246, 248; 

 from air, 250, 252, barium per- 

 oxide, 252, red lead, 253, 

 liquid air, 304, manganese 

 dioxide, 253, mercuric oxide, 

 131, oxygen mixture, 254, 

 potassium chlorate, 253, potas- 

 sium nitrate, 253, water, 283; 

 present in air, 215, 242; waste 

 product of plant life, 242 



Ozone, presence in air, 241 



Parallelogram, area of, 25 

 Pascal, experiments on atmo- 

 spheric pressure, 97 

 Peroxide, 261 

 Phenomenon, 76 

 Phlogiston, 264 



Phosphorus, combustion of, 210, 



230, 257 ; slow oxidation of, 216 



Phosphorus pentoxide, 216, 224, 



234, 257 

 Phosphorus, precautions in using, 



210 



Physical change, 132 

 TT, determination of value of, 15, 31 

 Pint measure, graduation of, 40 

 Pint, relation to cubic inch, 34 

 Pipette, 39; method of using, 57 

 Pipette, testing accuracy of, 57 

 Plants, absorption of carbon di- 

 oxide by, 242; excretion of 

 oxygen by, 242 

 Plasticine, use of, 35 

 Platinum jet, 256, 288 

 Potassium acid sulphate, pre- 

 paration of, 314 



Potassium, action on water, 281 

 Potassium bisulphate, 314; car- 

 bonate, 229 ; chlorate, action of 

 heat on, 253, crystallisation of, 



274, solubility of, 274; chlo- 

 ride, 253; hydrogen sulphate, 

 314; hydroxide, action on 

 carbon dioxide, 229; nitrite, 

 253; nitrate, action of heat 

 on, 253; sulphate, preparation 

 of, 313 



Potential energy, 122; examples 

 of, 122; transformation into 

 kinetic, 123 



Pound, distinction between weight 

 and mass, 54; relation to 

 kilogram, 53; standard, 52 



Power, 121 ; British unit of, 121 ; 

 Metric unit of, 121 



Precipitate, 225 



Pressure, atmospheric, 96; criti- 

 cal, 82; measurement of, 83; 

 standard atmospheric, 107 



Principle of Archimedes. 90; ap- 

 plied to gases, 94; verification 

 of, 89; use of, 90, 91 



Principle of floating bodies, 92 



Principle of Moments, 50 



Purification of water, 266, 268 



Pyknometer, 67 



Pyramid, volume of, 37 



Pyrogallic acid, use of, 246 



Quaternary compound, 309 



Radiant heat, 194 

 Radiation, 194 



Radiation from hot solid, 193 

 Radium, energy stored in, 202 

 Raising of boiling-point by dis- 

 solved substance, 178 

 Ramsay burner, 125 

 Ramsay, Sir WiUiam, 218 

 Reading graduated vessels, 40 

 Reaumur's thermometer scale, 147 

 Rectangle, area of, 24 

 Rectangular parallelepiped, 36 ; 

 prism, volume of, 36 ; slab, 

 volume of, 36 



Red lead, action of heat on, 253 

 Reduced iron, 221 

 Reducing agent, 305 

 Reflection of heat rays, 196 

 Regular figures, areas of, 24; 

 solids, formulae for volumes of, 

 38, volumes of, 36 



