Which of these is an example of a chemical change? a. fireworks exploding b. grinding powder c. melting cheese d. ironing a shirt

Each of the following compounds contains a metal that can exhibit more than one ionic charge. provide systematic names for each of these compounds. (a) cr(clo3)6 (b) mo(cn)6 (c) cr2(so3)3 (d) v(clo2)2 (e) v(cn)5 (f) os(clo2)4

Which of the following is not a true statement about dwarf planets? a the kuiper belt contains comets, asteroids, and dwarf planets. b ceres is a dwarf planet located in the kuiper belt. c the largest known dwarf planet in the solar system is named eris.

Acamcorder has a power rating of 17 watts. if the output voltage from its battery is 7 volts, what current does it use?units: