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Question:- How many valence electrons does selenium have? Answer: 6 valence electrons Selenium is an element with atomic number 34, and thus it has 6 valence electrons. This element is classified under Group 16 (formerly known as Group VIA), the chalcogens. The electronic configuration of the selenium is [Ar] 3d10 4s2 4p4. High energy electrons…

Question:- What is the hardest rock: igneous, sedimentary, or metamorphic? Answer: Metamorphic It is a widely general assumption that the metamorphic kinds of rocks receive the highest hardness among all possible kinds. This development of hardness is due to the conditions under which metamorphic rocks are formed. These are formed when the other rocks which…

Question:- When a gas is turned into a liquid, the process is called? Answer: Condensation Condensation is a change in the state of matter whereby substances change from a gaseous state to a liquid. This phase change occurs when the gas reaches the dew point in which it condenses to form a liquid or when…

Which of the following is not part of obtaining informed consent? 1: Letting participants know about potential risks of their participation 2: Letting participants know that participation is voluntary 3: Explaining the hypothesis to participants 4: Giving enough information to the participants so they know if they should participate or not Answer: 3: Explaining the…

Which of the following statements about accrual accounting is true ? Multiple Choice A.Revenue is recorded only when cash is received. B. Expenses are recorded when they are incurred. C. Revenue is recorded in the period when it is earned. D.Revenue is recorded in the period when it is earned and expenses are recorded when…

What is the best approach to lowering the risk for infection when giving first aid care? A.Use latex-free disposable gloves when giving care. B.Use eye protection when giving care. C.Always wash your hands as soon as possible after giving care. D.Make sure you know the person before giving care. Answer: C.Always wash your hands as…

Which is a true statement about the Privileges and Immunities Clause? a.The Privileges and Immunities Clause deals with amending the Constitution. b. The Privileges and Immunities Clause deals with rights for enslaved persons. c. The Privileges and Immunities Clause deals with shared rights for citizens. d. The Privileges and Immunities Clause deals with ratifying the…

Which of the following will be accomplished by efficient allocations of the factors of production? a) guaranteeing economic success b) understanding whether a product will fail c) fulfilling many needs and wants of society d) replenishment of limited resources Answer: c) fulfilling many needs and wants of society Optimal utilization of the real resources of…

What is true about poetry? A.Poetry is always written in strict form. B.Poets choose words for their meaning and sound. C.Unlike prose, poetry is written in straightforward language. D.Poets never read their poems aloud. Answer: B.Poets choose words for their meaning and sound. The statement expresses a key characteristic of poetry. Put and choose words…

Which of the following best explains how messages are typically transmitted over the internet? a) Packet Switching b) Circuit Switching c) Satellite Transmission d) Fiber Optic Cables Answer: a) Packet Switching Packet switching is the basic technique of transmitting information over the Internet. In this system, messages are then divided into segments referred to as…