Answer the following question given this paragraph: Summary Electrochemistry is the study of the relationship between electricity and chemical reactions. The oxidationreduction reaction that occurs during an electrochemical process consists of two halfreactions, one representing the oxidation process and one the reduction process. The sum of the halfreactions gives the overall chemical reaction. The overall redox reaction is balanced when the number of electrons lost by the reductant equals the number of electrons gained by the oxidant. An electric current is produced from the flow of electrons from the reductant to the oxidant. An electrochemical cell can either generate electricity from a spontaneous redox reaction or consume electricity to drive a nonspontaneous reaction. In a galvanic (voltaic) cell, the energy from a spontaneous reaction generates electricity, whereas in an electrolytic cell, electrical energy is consumed to drive a nonspontaneous redox reaction. Both types of cells use two electrodes that provide an electrical connection between systems that are separated in space. The oxidative half-reaction occurs at the anode, and the reductive half-reaction occurs at the cathode. A salt bridge connects the separated solutions, allowing ions to migrate to either solution to ensure the system's electrical neutrality. A voltmeter is a device that measures the flow of electric current between two half-reactions. The potential of a cell, measured in volts, is the energy needed to move a charged particle in an electric field. An electrochemical cell can be described using line notation called a cell diagram, in which vertical lines indicate phase boundaries and the location of the salt bridge. Resistance to the flow of charge at a boundary is called the junction potential. Q: What is the study of the relationship between electricity and chemical reactions called? Choices: - inorganic chemistry - analytical chemistry - physical chemistry - electrochemistry A:
electrochemistry
Answer the following question given this paragraph: Q: This process breaks rocks and other surface materials into much smaller pieces? Choices: - corrosion - leaching - chemical reaction - weathering A:
weathering
Q: Answer the following question given this paragraph: The Axial Skeleton The skeleton is subdivided into two major divisionsthe axial and appendicular. The axial skeleton forms the vertical, central axis of the body and includes all bones of the head, neck, chest, and back (Figure 7.2). It serves to protect the brain, spinal cord, heart, and lungs. It also serves as the attachment site for muscles that move the head, neck, and back, and for muscles that act across the shoulder and hip joints to move their corresponding limbs. The axial skeleton of the adult consists of 80 bones, including the skull, the vertebral column, and the thoracic cage. The skull is formed by 22 bones. Also associated with the head are an additional seven bones, including the hyoid bone and the ear ossicles (three small bones found in each middle ear). The vertebral column consists of 24 bones, each called a. Q: The axial skeleton forms the vertical, central axis of the body and includes all bones of the head, neck, chest, and back. it serves to protect the brain, spinal cord, heart, and what else? Choices: - ovaries - knees - intestines - lungs A:
A: lungs
Question: Answer the following question given this paragraph: The driving force to combine with nonmetals to create ionic compounds varies quite a bit between different metals. Some pure metals, like cesium and potassium, are so eager to react that they must be stored under oil to avoid an immediate reaction with the oxygen present in air. Others, like platinum and gold, are stable enough that they can be found in nature as pure metals rather than as the cationic portion of an ionic compound. Gradual degradation of a material due to its exposure to the environment is known as corrosion . Metals like gold and platinum are unusually resistant to corrosion, which makes them especially valuable for both structural and decorative purposes. Q: Gradual degradation of a material due to its exposure to the environment is known as what? Choices: - metabolism - erosion - destruction - corrosion A:
Answer: corrosion
*Question*
Answer the following question given this paragraph: Q: Incomplete dominance and epistasis are both terms that define what? Choices: - learned behaviors - genetic difficulties - genetic habits - genetic relationships A:
**Answer**
genetic relationships
(Q).
Answer the following question given this paragraph: Electrochemistry is the study of chemical processes that occur at the interface between an electron conductor, such as a wire, and a solution of electrolytes, which is often simply an ionic substance dissolved in water. Electrochemical processes involve a transfer of electrons between the wire and the solution. These reactions can be used to create electrical power, to purify metals, and to carry out a number of useful chemical transformations. Q: What processes involve a transfer of electrons between the wire and the solution? Choices: - radioactive - magnetic - thermal - electrochemical A:
(A).
electrochemical