Toane 2. A chemical formula is an expression used
to represent
(1) mixtures only (3) compounds only
(2) elements only (4) elements and
compounds

Which piece of equipment would me most useful for measuring the volume of some water? a. pan balance b. graduated cylinder c. tweezers d. flask quick

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

What will most likely happen in the absence of a cell membrane? a) photosynthesis will not take place. b) the cell will not store food, water, nutrients, and waste. c) energy will not be released during cellular respiration. d) substances will pass in and out of the cell in an uncontrolled manner.