Point q is plotted on the coordinate grid point poi’s a (30, -30 point r is vertically above point q it is at the Same distance from point q as point p from q which of these shows the coordinates of point r and it’s distance from point q

How many liters of hydrogen gas will be produced at stp from the reaction of 7.179×10^23 atoms of magnesium with 54.219g of phosphoric acid (h3po4) the equation is 3mg + 2h3(> mg(po4)2+3h2

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.

Building glycogen from glucose molecules is an example of