Calcium carbonate decomposes at 12000 C to form carbon dioxide and calcium oxide. If 25 L of Carbon dioxide are collected at 12000 C, what will the volume of this gas be after it cools to 250 C?

A+b→2c when the reaction begins, the researcher records that the rate of reaction is such that 1 mole of a is consumed per minute. after making changes to the reaction, the researcher notes that 2 moles of a are consumed per minute. what change could the researcher have made to effect this change?

The p sub shell can hold up to 8 electrons in an atom. true or false?

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this