1. Minerals are substances with a fixed crystal structure and a unique chemical composition.
2. Processing ore sometimes involves
or grinding minerals.
3. Prehistoric people used for knives and arrowheads.
4. The average American house contains about pounds of minerals.
5. Early
used rocks as 2.6 million years ago

For each of the following compounds, write the formula then predict whether it would be a strong, weak, or non-electrolyte when placed in di water. for the ionic compounds only, put (s) or (aq) after the forrmula formula strong, weak or non electrolyte? a calcium hydroxide b. silver carbonate c. lead(ii) sulfate d. phosphorus trifluoride e. sodium phosphide f barium sulfate g. strontium acetate h. zinc nitrate

Why is carbon ideal for making different compounds?

Which of the following are sources of revenue for media companies? a. direct sales to producers b.advertising and subscriptions c. online purchase d. capital investments