Mineral x is scratched by a diamond. mineral x

1. has a mohs hardness of 10
2. can't be scratched by a penny
3. is softer than a diamond
4. must be a precious metal

Which of the following represents a negatively charged ion? of t 7

Study this image. which statements best describe the rock shown? check all that apply. the grains of this rock are jagged. this rock has several coarse grains. the grains in this rock are very large. this rock has a non-banded pattern. the color of this rock is determined by its texture.

What the theory that the sun goes around earth was replaced with the theory that earth goes around the sun this was an exaple of a