4. For PbCl₂ (Ksp = 2.4 × 10⁻⁴), will a precipitate of PbCl₂ form when 0.10 L of 3.0 × 10⁻²M Pb(NO₃)₂ is added to 400 mL of 9.0 × 10⁻² M NaCl?

1. list three scientific reasons cockroaches may fly.

How will the volume of a gas be affected if the pressure is tripled, but the temperature remains the same?

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?