Choose the method that will make the microstructure of spheroidite in an iron and carbon steel with eutectoid composition.
start at 900c then cool slowly. afterwards reheat to 800c for over a day.
start with a tempered martensite and heat to 700c for over a day.
start at 900c then cool slowly. afterwards reheat to 700c for over a day.
start with a pearlite and heat to 800c for over a day.

What does x represent in the formula for the compound xcl4?

If a solution had a ph of 7 what is the solution

You exhale co2 which is produced during cellular respiration.  co2 combines with the water in your blood's plasma to make up one half of the body's most important buffer pair, carbonic acid.  the more physical activity you engage in, the more co2 your body is producing.  you can see this by putting some of the cabbage indicator in a glass and then blowing bubbles into it through a straw.  can you see a change in the color of the indicator?