The sun and stars give off radiant energy. observation of a star's radiant energy enables us to study the star’s composition and which factor? a. the number of stars in its galaxy b. the distance to the center of its galaxy c. whether it is moving toward us or away from us d. the number of planets in its solar system

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

Drug abuse will not lead to physical and psychological dependence. true or false ?

How many moles of oxygen gas are produced from the decomposition of six moles of potassium