Write the net ionic equation for this reaction occurring in water: Potassium sulfate and
barium chloride are mixed to form potassium
chloride and barium sulfate.

1. No reaction occurs.
2. 2 K+ + 2 Cl− → 2 KCl
3. 2 K2SO4 + Ba2+ → 2 K+ + BaSO4
4. SO2−
4 + BaCl2 → 2 Cl− + BaSO4
5. SO2−
4 + Ba2+ → BaSO4

What type of solution is formed if 10 g of kclo3 are dissolved in 100g of water at 30

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

Agas occupies 475 cm^3 at 313k. find its volume at 367k. you must show all of your work to receive credit. be sure to identify which of the gas laws you will be using