(Top 2024/2025 EXAM REVIEW DOC )WGU C371 Concepts of Science. Exam Questions and answers, 100% Accurate, VERIFIED.

WGU C371 Concepts of Science. Exam Questions and answers, 100% Accurate, VERIFIED. A substance has a low density and fills its container. What is the physical state of the substance? - - gas A substance has a definite volume and takes the shape of its container. What is the physical state of the substance? - -liquid A substance takes the shape of its container and flows easily. It is not easily compressible. What is the physical state of the substance? - -liquid Which of the following options best describes this illustration? (Cube of spheres) - -solid Which event represents a chemical change? - -A shovel rusts Which property is a chemical property? - -Flammability Which property is an extensive property of an iron bar? - -length What does the law of conservation of matter specify? - -Total mass stays the same in changes of state. According to the law of conservation of energy: - -Total energy in a closed system is constant. Exactly one pound of bread dough is placed in a baking tin. The dough is cooked in an oven at 350ºF, releasing a wonderful aroma of freshly baked bread during the cooking process. Which of the following options accurately describes the mass of the baked loaf? - -The mass of the baked loaf is less than the mass of the one pound of the original dough because a gas is produced during the baking process. The gas escapes the dough and is responsible for the aroma of freshly baked bread. Which of the following options describes a change in potential energy only? - -A leopard waits in a tree in order to more easily seek prey. As a dropped ball falls to the ground, what is happening? - -It is changing potential energy into kinetic energy. Which situation is most directly associated with kinetic energy? - -A bowling ball is rolled down a lane. The metal bleachers at a football stadium heat up in the sun. Which of the following options best describes the type of energy transfer occurring in this situation? - -Thermal energy How would you classify ammonia (NH3)? - -compound Which of the following is a pure substance? - -aluminum sulfate, Al2(SO4)3 How would you classify a solution of potassium iodide, KI, in water? - -homogeneous mixture A neutral atom has a mass number of 17 and 8 electrons. Whi