Answer the following question given this paragraph: Mercury(II) oxide is a red solid. When it is heated, it decomposes into mercury metal and oxygen gas. Q: What is the color of mercury oxide? Choices: - yellow - orange - green - red A:
red
(Question)
Answer the following question given this paragraph: Liquids have a definite volume, but take the shape of the container. Q: What state of matter has a definite volume, but takes the shape of the container? Choices: - gas - plasma - solid - liquid A:
(Answer)
liquid
Ques: Answer the following question given this paragraph: Anemia is a disease that occurs when there is not enough hemoglobin (or iron) in the blood so it can't carry adequate oxygen to the cells. There are many possible causes of anemia. One possible cause is excessive blood loss due to an injury or surgery. Not getting enough iron in the diet is another possible cause. Q: Which disease occurs when there is not enough hemoglobin in the blood? Choices: - Pulmonary - Respiratory - Diabetes - anemia A:
Ans: anemia
(Q).
Answer the following question given this paragraph: 8.5 End-of-Chapter Material Chapter Summary To ensure that you understand the material in this chapter, you should review the meanings of the following bold terms in the following summary and ask yourself how they relate to the topics in the chapter. A phase is a certain form of matter that has the same physical properties throughout. Three phases are common: the solid, the liquid, and the gas phase. What determines the phase of a substance? Generally, the strength of the intermolecular interactions determines whether a substance is a solid, liquid, or gas under any particular conditions. Covalent network bonding is a very strong form of intermolecular interaction. Diamond is one example of a substance that has this intermolecular interaction. Ionic interactions, the forces of attraction due to oppositely charged ions, are also relatively strong. Covalent bonds are another type of interaction within molecules, but if the bonds are polar covalent bonds, then the unequal sharing of electrons can cause charge imbalances within molecules that cause interactions between molecules. These molecules are described as polar, and these interactions are called dipole-dipole interactions. A certain rather strong type of dipole-dipole interaction, involving a hydrogen atom, is called hydrogen bonding. On the other hand, equal sharing of electrons forms nonpolar covalent bonds, and the interactions between different molecules is less because the molecules are nonpolar. All substances have very weak dispersion forces (also called London forces) caused by the movement of electrons within the bonds themselves. In the solid phase, intermolecular interactions are so strong that they hold the individual atoms or molecules in place. In many solids, the regular three-dimensional arrangement of particles makes a crystal. In other solids, the irregular arrangement of particles makes an amorphous solid. In liquids, the intermolecular interactions are Saylor URL: http://www. saylor. org/books. Q: What is the term for a certain form of matter that has the same physical properties throughout? Choices: - balance - wave - structure - phase A:
(A).
phase
Ques:Answer the following question given this paragraph: Scientists study meteorites to learn about Earth's interior. Meteorites formed in the early solar system. These objects represent early solar system materials. Some meteorites are made of iron and nickel. They are thought to be very similar to Earth's core ( Figure below ). An iron meteorite is the closest thing to a sample of the core that scientists can hold in their hands!. Q: Some meteorites are made of iron and nickel and are thought to be very similar to what part of the earth? Choices: - crust - shelf - mantel - core A:

Ans:core
Ques: Answer the following question given this paragraph: CHAPTER REVIEW 22.1 Organs and Structures of the Respiratory System The respiratory system is responsible for obtaining oxygen and getting rid of carbon dioxide, and aiding in speech production and in sensing odors. From a functional perspective, the respiratory system can be divided into two major areas: the conducting zone and the respiratory zone. The conducting zone consists of all of the structures that provide passageways for air to travel into and out of the lungs: the nasal cavity, pharynx, trachea, bronchi, and most bronchioles. The nasal passages contain the conchae and meatuses that expand the surface area of the cavity, which helps to warm and humidify incoming air, while removing debris and pathogens. The pharynx is composed of three major sections: the nasopharynx, which is continuous with the nasal cavity; the oropharynx, which borders the nasopharynx and the oral cavity; and the laryngopharynx, which borders the oropharynx, trachea, and esophagus. The respiratory zone includes the structures of the lung that are directly involved in gas exchange: the terminal bronchioles and alveoli. The lining of the conducting zone is composed mostly of pseudostratified ciliated columnar epithelium with goblet cells. The mucus traps pathogens and debris, whereas beating cilia move the mucus superiorly toward the throat, where it is swallowed. As the bronchioles become smaller and smaller, and nearer the alveoli, the epithelium thins and is simple squamous epithelium in the alveoli. The endothelium of the surrounding capillaries, together with the alveolar epithelium, forms the respiratory membrane. This is a blood-air barrier through which gas exchange occurs by simple diffusion. Q: What bodily system handles taking in oxygen, getting rid of carbon dioxide, aiding in speech production and sensing odors? Choices: - pulmonary system - circulatory system - nervous system - respiratory system A:
Ans:
respiratory system