A brick of the type used to build a kiln is 11.0 cm wide, 6.00 cm tall, and 22.7 cm long; the brick has a mass of 2950 g. Calculate the density of the brick

The answer for #3 is c but i don't know why

What is the value of keq for the reaction expressed in scientific notation

Calculate: select the worksheet tab. this tab you calculate the analyte concentration.  fill in the first set of boxes ("moles h2so4" and "moles naoh") based on the coefficients in the balanced equation. (if there is no coefficient, the value is 1.)  record the appropriate volumes in the "ml naoh" and "ml h2so4" boxes.  record the concentration of the titrant in the m naoh box. click calculate. what is the concentration listed