Help! (Chose all the right answers)
Glucose is made of molecules with the chemical formula seen in the picture
What can we say about glucose molecules?

A) There are 3 different types of atoms in glucose

B) 2 glucose molecules would have 12 C atoms in total

C) Glucose is an element

D) Each glucose has 18 atoms in total

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?

Suppose that a certain fortunate person has a net worth of $71.0 billion ($7.10×1010). if her stock has a good year and gains $3.20 billion (3.20×109) in value, what is her new net worth?

Why is it that 85.48 rounded to two significant figures is 85 and not 86?