Pure magnesium metal is often found as ribbons and can easily burn in the presence of oxygen. When 3.09 g of magnesium ribbon burns with 8.75 g of oxygen, a bright, white light and a white, powdery product are formed.
Enter the balanced chemical equation for this reaction. Be sure to include all physical states.
equation:
What is the limiting reactant?
magnesium
oxygen

If the percent yield for the reaction is 90.3%, how many grams of product were
formed?

How many grams of the excess reactant remain?

Seawater contains approximately 3.5%nacl by mass and has a density of 1.02 g/ml. what volume of seawater contains 7.5 g of sodium?

Write two balanced equations 1. dissolving of solid sodium hydroxide in water 2. the reaction of sodium hydroxide solution with hydrochloric acid

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