A buffer is made by adding 0.500 mol HCIO2 and 0.300 mol CIO2Na to enough water to make 1.00 L of solution. The Ka for chlorous acid, HClO2, is 1.2x10^-5. What is the pH for this buffered solution?

Achemical reaction (also known as a chemical change) produces substances that are chemically different from the starting materials. an example of a chemical reaction is the formation of water from hydrogen and oxygen gas.in a physical change, a substance changes its physical appearance but not its chemical identity. an example of physical change is the formation of liquid water from solid water, a familiar process called melting. physically, liquid water looks very different from solid water (ice) but the chemical identity, water, is the same for both. which of following changes that affect the composition of our atmosphere involve physical changes and which involve chemical reactions? oxygen gas changes to ozone during thunderstorms carbon dioxide is produced by the combustion of gasoline in an automobile engine. when coal, oil, and natural gas are decomposed in landsills they produce methane gas. freezing rain develops when a warm air mass overrides a cold air mass. fog forms from water vapor when the temperature drops below the dew point

50 pts plz what is the physical state of matter of baking soda.

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife