Twenty m3/hr of air at 600 kpa, 330 k enters a well-insulated, horizontal pipe having a diameter of 1.2 cm and exits at 120 kpa. assume steady state and use the ideal gas model for the air. also assume constant specific heat, p1.007 kj/kg-k for air at 330 k. determine the mass flow rate, in kg/s, and the exit velocity, in m/s.

Maybe c? sorry if im wrong

It won't lose or gain electrons if it's a covalent bond it shares the electrons with another atom or atoms. if it is an ionic bond it will lose the 3 electrons on the outer shell and become a positively charged ion.  credit goes to @sunshinebaby of answers.yahoo.com.

answer and explanation;

composition refers to both the types of minerals within a rock and the overall chemical makeup of the rock while texture refers to the size and arrangement of the minerals or grains that make up a rock. both composition and texture can be used to classify rocks, such as igneous rocks. texture describes how the rock became solid or crystallized from liquid, melted rock. composition of a rock describes the minerals that make up a particular rock.