PLS HELP Identify the number of significant figures in each measurement.

Type the correct answer in each box. Use numerals instead of words.

0.052301 km:
significant figures

400 cm:
significant figures

50.0 m:
significant figures

4,500.01 mi:
significant figures

What is the chemical name of the compound na2co3? use the list of polyatomic ions and the periodic table to you answer. a. sodium carbon oxide b. sodium carbonate c. sodium(ll) carbonate d. sodium oxalate

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?

Why do electrons further from the nucleus have more energy