Will mark brainliest Which statement describes a compound machine?

It is made up of more than one simple machine.

It makes work more difficult.

It has movement in only one direction.

It can only be acted on by one force.

Using a value of ksp = 1.8 x 10-2 for the reaction pbcl2 pb+2(aq) + 2cl -(aq). if the value of ksp was determined to be only 1.2 x 10-2: too much solid has dissolved. additional precipitate is forming. the solution is unsaturated. the ions are now combining to reduce their concentrations.

0.2348 grams of pbcl2 used to form 44.0 ml of solution.

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.