1.Explain why during splitting of water not equal volume of oxygen and hydrogen gases were produced? 2.Describe how hydrogen gas can be tested?
3.Explain how do you know that water is not simply a mixture hydrogen gas and oxygen gas?
4.Explain why a balloon filled with hydrogen gas will float up very high, but one filled with oxygen gas will

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.