The net force on an object that is accelerating at a rate of 4 m/sec is 255 N. What is the mass of the object in kg?

10-14. (a) when 100.0 ml of weak acid ha were titrated with 0.093 81 m naoh, 27.63 ml were required to reach the equivalence point. find the molarity of ha. (b) what is the formal concentration of a- at the equivalence point? (c) the ph at the equivalence point was 10.99. find pk. for ha. (d) what was the ph when only 19.47 ml of naoh had been added?

Write the complete balanced equation for the reaction between lead (iv) oxide (pbo2) and water (h2o).

2. how is heavy water different from normal water