Match the mixture with its description. match term definition colloid a) microscopically insoluble particles that are suspended throughout another substance emulsions b) a mixture that has its different components mixed evenly within the substance solution c) a solute that is distributed evenly within the solvent homogeneous d) two or more liquids that are normally not mixable

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?