A calcium supplement contains 590 mg of calcium per tablet. Write the equality for this statement. 1 tablet = —————— Mg of calcium

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

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).

When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!