5. Which of the following is true about water: a) The liquid is less dense than the solid. b) The solid is less dense than the gas. c) The liquid is less dense than the gas. d) The solid is less dense than the liquid. e) None of the above

Use solubility rules to predict whether precipitates will form when the following pairs of solutions are mixed. If a precipitate forms, write a full and net ionic equation for the reaction. Include the colour and states of reactants and precipitate. Note: if colour is not stated, assume it is colourless. (a) copper(li) sulfate and sodium carbonate

A compound containing \( 84.09 \% \) carbon and \( 15.91 \% \) hydrogen by mass. Determine the empirical formula of the compound.

2. Wood burning in a fireplace is a: a) Chemical change b) Physical change

7. is a phase change from gas to liquid a) Melting b) Boiling c) Freezing d) Condensing

Paso 3: Concentración del reactivo: Determinar la concentración del reactivo para el mismo tiempo en el que fue determinada la velocidad de reacción; para esto se usa la función de concentración.