Balance the following equation
_MgF2 + _Li2CO3 -> _MgCO3 + _LiF

How air particles exert a pressure on the inside of the balloon

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

Which of these is a density dependent factor? a. epidemic b. earthquake c. drought d. hurricane