Caves are hollow spaces in Earth's crust.
Jduddhhdid sewer feeder dad
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You can tell that a crystal is a crystal if it creates a rainbow prism effect. Or you can tell by tapping the crystal. If he crystal makes a musical ring noise (like how a glass cup would sound) it’s a crystal.
2AgBr+Cl2=2AgCl+Br2
You want everything to be the same on both sides the easiest way to do that is draw a line down the equal sign and write out all you compound and how many there are and do the same on the other side until there even
