A. When the rock is heated with gas, the mass of the solid after reaction decreases b. When a piece of copper metal is heated, the volume of the reacted solid increases
c. When heating a pure gold chain, the mass does not change

Which software would you use to create a print design? a. illustrator b. audacity c. reaper d. dreamweaver

1. which of the following statements are true about routers and routing on the internet. choose two answers. a. protocols ensure that a single path between two computers is established before sending packets over it. b. routers are hierarchical and the "root" router is responsible for communicating to sub-routers the best paths for them to route internet traffic. c. a packet traveling between two computers on the internet may be rerouted many times along the way or even lost or "dropped". d. routers act independently and route packets as they see fit.

You draw two cards from a standard deck of 52 cards, but before you draw the second card, you put the first one back and reshuffle the deck. (a) are the outcomes on the two cards independent? why?