If a student pushes a book across a table with a force of 6 N and the force of friction is 4 N. What is the net Force acting on the book?

An observation that requires measurement is called quantitative observable or qualitative

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.