A patient needs to take 625 mg of ibuprofen twice daily. the pills are each 250 mg. how many pills does the patient need to take each time?

Imagine a balloon is made from a membrane that's permeable to water but not sucrose molecules. How would the concentration of sucrose inside the balloon be affected if the balloon is filled with a 50% sucrose solution and then placed in a beaker of

What is the atmospheric layer in which solar energy strips electrons from nitrogen and oxygen atoms, causing them to become positive ions.

Mention 6 products from coal tar as a result of destructive distillation of coal

How many moles of O2 would be needed to produce 3.2 moles Fe2O3?

How many moles of BaCl2 are found in 8.62grams of BaCl2?

Is a gas that is produced by the ultraviolet radiation in the air in the vicinity of welding operations?

At what the pressure, in atmospheres, that O2, gas at 75°C has a density of 2.00 g/L

What aspect relates to energy

What is the specific heat capacity of silver metal if 75.00 g of the metal absorbs 56.4J of heat and the temperature rises 35.0°C?

Explain chemical bonds