As a solid substance is heated, its volume increases but its mass remains constant. Sketch a graph of density vs. temperature showing the trend you expect. Explain.
(haha I’m lost please help!!)

Which one of the following gases is not an important component of soil?

Blank allows you to do calculations for situations in which only the amount of gas is constant a)boyle's law b)combined gas law c)ideal gas law d)dalton's law

Miner's coal distributors does not mine coal itself, nor does it even store or handle the coal. instead, miner's solicits orders for low sulfur coal from other firms, then purchases the required amount from suppliers and directs them to ship the coal to its customers. what is miner's