Q. Give reasons for the following: 1. Graphite has a very high melting point. 2. Graphite is a non-metal but conducts electricity. Answer the question according to the class 9th student.

1. calculate the approximate enthalpy of the reaction in joules. estimate that 1.0 ml of vinegar has the same thermal mass as 1.0 ml of water. iqnore the thermal mass of th sodium bicarbonate. note: it takes about 4.2 joules () to change 1.0 gram (1.0ml) of water 1.0 c

What are the three major branches of natural science? • earth and space science, life science, physical science •earth and space science, physical science, chemistry •physical science, life science, chemistry •life science, chemistry, physics

What term is missing from the central region that describes hypotheses, theories, and laws? popular predictable mathematical falsifiable