10
classify each as either
élément
compound
mixture of elements
mixture of compounds
mixture of elements and compounds

Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?

What is the result of multiplying (2.5 × 1010) × (2.0 × 10-7)? a. 5.0 × 103 b. 5.0 × 10-3 c. 5.0 × 1017 d. 5.0 × 10-17

Anthracite is so hard and pure it is also referred to as a renewable resource metamorphic rock hot bituminous coal dirty fuel