number 8 the list is hydrogen,magnesium,silicon and oxygen and there are 4elements
Viruses are not classified as being alive in because of the fact that they can't reproduce.
Answer:
B:Metamorphic
Explanation:
Rocks formed under high heat and pressure is essentially the definition of metamorphic rock :)
Answer:
1)Reactants
2)Light
3)An item that can increase reaction rates
4)Reactants must collide with each other
Less molecules lower the chance for collisions
The more collisions there are the higher the reaction rate
It would be potassium chloride or kcl
