Which materials are made of more than one element

How many electrons does Br lose or gain to fill its octet?

What SI Unit would best be used to express the height of your classroom ceiling?

What is the advantage of having folded membrane surronding the cell or within the cytoplasm or within organelles

A solution is made by adding 0.350 g Ca (OH) 2 (s), 45.0 mL of 1.00 M HNO3, and enough water to make a final volume of 75.0 mL. Assuming that all of the solid dissolves, what is the pH of the final solution?

Which do all groups of plants have these are the choices A. chloroplasts B. roots C. spores D. tubes

Which set of terms best defines what affects kinetic energy and potential energy, respectively? position, gravity gravity, velocity velocity, height height, position

Which radiation detection device is the best to use for measuring the presence of radiation in large moving objects where constant monitoring is impossible? film badge Geiger counter cloud chamber scintillation counter

Smoke fiilling up a room is diffusion or not

What is the independent and dependent variable for a dry ice experiment

a substance that undergoes a physical change like melting is still the same substance is it true or false