in a lab solution of copper ii chloride was used in the reaction with iron how would a 1.00 liter sample of a 1.00 m copper ii chloride solution be prepared from solid copper ii chloride salts

An empty fuel tank can still contain and therefore can be even more dangerous than one full of liquid fuel.

Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size

Consider the story you just read. all but one of the choices below indicate that something is living.