6.002cm = what to sig figs

Plants take in blank and release oxygen gas

What is the pressure of the gas in this mercury manometer if h = 81 mm and atmospheric pressure is 749 mmHg

The number placed in front of a formula is called a coefficient. the small number within a chemical equation formula is called a subscript. why do we adjust coefficients when balancing chemical equations and not subscripts?

Where does electromagnetic radiation come from

What do scientists use molecular clocks to estimate? A. The age of fossilized remains found in an archeological dig.

When conducting an experiment, a scientist should: (a) attempt to test every possibility (b) attempt to control the conditions (c) place no limits on the investigation (c) proceed without specific goals

Can atoms be divided into smaller pieces

How many atoms are in 1.25 moles of calcium acetate, ca (c² h³ o²) ²?

What is a physical change? A change in matter from one form to another without becoming a new substance. A change in matter that results in a chemical reaction. A change in matter that results in the smallest unit of a compound.

You are in the room with several objects, the temperature in the room is 21 celcius, what can you assume about the temperatures of the objects in the room?