3. in which compound is the ratio of metal ions to nonmetal ions 1 to 2? (1) calcium bromide (2) calcium oxide (3) calcium phosphide (4) calcium sulfide

You are to give ampicillin with a recommended dose of 25mg/kg to a child with a mass of 29kg. if stock on hand is 250mg/capsule how many capsules should be given?

Design techniques and materials that reduce the negative environmental impact of a structure are referred to as

Which property of a rock remains unchanged by mechanical weathering? a. total surface area b. size and shape c. mineral composition d. sharpness