Which of the following is not an element

Ripping a piece of paper-physical or chemical change?

Mixing two chemicals that will cause a reaction-physical or chemical change?

Bending a piece of metal with your hands-physical or chemical change?

Mixing 2 substances that cause them to light up-physical or chemical change?

When more salt is dissolved in water, crystals become ___________ than when less salt is dissolved.

When the pressure on forming crystals is increased the crystal size is __________ than when the pressure is lower.

Powder left behind when a mineral is rubbed against a rough surface is called....

Tendency of a mineral to split is known as...

This is the way a mineral reflects light...

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