Une lampe est traversée par un courant de 2 A et la tension à ses bornes est 24 V. Calculer : 1. Sa résistance R 2. Sa puissance P. Rappel de la loi d'Ohm : U = R x

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Which of the following statements about acidic water is true? a. acid has no effect on the h,o molecules. b. the solution contains a larger number of oh ions than h,o ions. c. the solution contains a larger number of h,o ions than qh ions. d. the solution contains an equal number of h,o ions and oh ions. none of the above e.

Tell me the iupac name of the following compounds: