Which of the following chemical equations is balanced? A. 4Fe+3O →2Fe O 2 23 B. 4Fe+2O →3Fe O 2 23 C. 3Fe+3O →3Fe O D. 2Fe+O →Fe O 2 23

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?

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

Base your answer on the information below and on your knowledge of chemistry. nitrogen dioxide, no2, is a dark brown gas that is used to make nitric acid and to bleach flour. nitrogen dioxide has a boiling point of 294 k at 101.3 kpa. in a rigid cylinder with a movable piston, nitrogen dioxide can be in equilibrium with colorless dinitrogen tetroxide, n2o4. this equilibrium is represented by the equation below. 2no2(g) n2o4(g) + 58kj at standard pressure, compare the strength of intermolecular forces in no2(g) to the strength of intermolecular forces in n2(g).