All of the following are characteristics of matter except A. matter can disappear and reappear
B. matter has mass
C. matter occupies space
D. all things are composed of matter

1. baking powder is a 1: 1 molar mixture of cream of tartar (khc4h4o6) and baking soda (nahco3). a recipe calls for two teaspoons (a total of 8.0 grams) of cream of tartar. how much baking soda must be added for both materials to react completely?

When the water vapor cools it condenses select a number that represents his process on the

The tilt of the earth's axis of rotation is responsible for the a) ocean's tides. b) size of the moon. c) brightness of stars. d) earth’s seasons.