Questions and answers by

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Questions (341)

An unstable nucleus undergoes gamma decay. How does the nucleus change?(1 point)Responses It becomes less stable by emitting
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How does the nucleus change in beta-plus decay?(1 point)Responses The mass number decreases by one, and the atomic number
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Use the equation to answer the question.146C→147N+0−1e Which type of radioactive decay does the equation model? (1 point)
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Which type of energy does alpha decay generate?(1 point)Responses sound sound kinetic kinetic electromagnetic electromagnetic
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Polonium has a large, unstable nucleus. Through which process is it most likely to become stable?(1 point)Responses beta-minus
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A neutron strikes an atom of uranium-235 to start a fission reaction. A student expresses this situation as 01n+235 92U. Which
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Which fact is true during a fission chain reaction?(1 point)Responses The number of freely-moving neutrons increases over time.
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Use the equation to answer the question.21H+ 21H→ 42H+energy Which statement best describes the mass numbers of the atoms in
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Which statement is always true when nuclear fusion occurs?(1 point)Responses The total number of protons and neutrons in each
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Which of the following values for x makes the inequality 4x+1−−−−−√ ≤5.83 true?(1 point)Responses 9.5 9.5 10 10 9
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When the value of r is 23, the equation 3r−47.5=21.5 is a true statement. Which of the following values of r makes the
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Consider the following expressions:−6+3⋅5______blank16−−√+32÷8. Which operator can be inserted to make the statement
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Which expression when substituted for A makes the equation A=5−11/3 true?(1 point)Responses 153+13 15 thirds plus 1 third
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Determine which of the following statements is/are true:#1: 3⋅20=4(6+9) #2: 4×12=6×(8×2)12+6⋅64−−√=2⋅4⋅8 #3:
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That Spotby Jack London There are times when I think it wasn’t stupidity. Maybe, like some men I know, he was too wise to
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That Spotby Jack London I don’t think much of Stephen Mackaye any more, though I used to swear by him. I know that in those
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What is an objective summary?(1 point)Responses a thoughtful critical evaluation of a work of literature a thoughtful critical
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Which is the best definition of a summary?(1 point)Responses an introductory description that ends with a hook an introductory
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The Open Windowby H. H. Munro (Saki) “You may wonder why we keep that window wide open on an October afternoon,” said the
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How does a complex character drive a story’s plot?(1 point)Responses Their motivations can create conflicts that relate to a
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What is one way that characters relate to plot?(1 point)Responses Characters move a plot forward through the way they are
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Which of the following is an example of direct characterization?(1 point)Responses statements about a character in a
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The Open Windowby H. H. Munro (Saki) “Do you know many of the people round here?” asked the niece, when she judged that they
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The Open Windowby H. H. Munro (Saki) “Do you know many of the people round here?” asked the niece, when she judged that they
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The Open Windowby H. H. Munro (Saki) “My aunt will be down presently, Mr. Nuttel,” said a very self-possessed young lady of
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Norman Gortsby sat on a bench in the Park, with his back to a strip of bush-planted sward, fenced by the park railings, and the
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Use paragraph 2 from “The Interlopers” to answer the question.The forest lands of Gradwitz were of wide extent and well
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Use paragraph 1 from “The Interlopers” to answer the question.In a forest of mixed growth somewhere on the eastern spurs of
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Duskby H.H. Munro (Saki) Norman Gortsby sat on a bench in the Park, with his back to a strip of bush-planted sward, fenced by
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Use the passage to answer the question.With that reflection Gortsby rose to go; as he did so an exclamation of concern escaped
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How are similes and metaphors similar?(1 point)Responses Both say something is something else. Both say something is something
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The feud might, perhaps, have died down or been compromised if the personal ill-will of the two men had not stood in the way; as
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Which statement best describes the effect of radioactive decay on a nucleus?(1 point)Responses The resulting nucleus is less
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The process of radioactive decay is unpredictable and irreversible. Which option would be an appropriate model of the
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Which option would be an appropriate model of nuclear fission?(1 point)Responses cutting a cake in half cutting a cake in half
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Which phrase describes a nuclear chain reaction?(1 point)Responses a reaction in which small nuclei combine into a larger
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Which phrase best describes nuclear fusion?(1 point)Responses the process by which small nuclei combine into a larger nucleus
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Which statement best explains why mass is not conserved in a nuclear change?(1 point)Responses Some of the products have less
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Polonium has a mass number of 212 and an atomic number of 84. In a balanced nuclear reaction, polonium releases an alpha
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Which statement about the balanced equations for nuclear and chemical changes is correct? (1 point)Responses Both are balanced
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Which phrase describes transmutation?(1 point)Responses the conversion of an atom of one element into a different element
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The element radium has a mass number of 226 and an atomic number of 88. How many neutrons does an atom of radium have?(1 point)R
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A student is working on a research project that analyzes historical temperatures. They want to perform a statistical analysis.
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What does an organization need MOST in order to prepare for the coming months and years of operation?(1 point) Responses video
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What is an example of data?(1 point) Responses the average grades of students the average grades of students the current
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Which statement accurately describes the concept of information?(1 point) Responses numbers numbers raw facts raw facts data in
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Which feature of Word is used to organize connected items that are printed one below the other?(1 point) Responses chart chart
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Which component of an information system is responsible for processing data?(1 point) Responses hardware hardware software
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When discussing lists, what is an appropriate term to describe items of a similar size and detail?(1 point) Responses priority
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What function does a database have in an information system?(1 point) Responses to convert data into a binary format to convert
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Which type of structure can be used for a list that contains certain items with more details?(1 point) Responses paragraphs
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Which characteristic of Word enables it to be an effective information system for sending out written communication that
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What is an example of a network?(1 point) Responses a word processor running on top of an operating system a word processor
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Which of the following employees at a company should have the best understanding of the company’s information systems?(1
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What is an example of hardware?(1 point) Responses an instruction set for analyzing data an instruction set for analyzing data a
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A business analyst for an enterprise has to make a presentation to management. They want to present the information in a way
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Which expression is equivalent to the given trinomial?(1 point) Responses 4x(x2+2x+3) 4 x open paren x squared plus 2 x plus 3
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Simplify the following expresssion:(1 point) Responses −3x−5negative 3 x minus 5 5x−55 x minus 5 −3x−9negative 3 x
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Write an equivalent expression to the given expression using the Associative Property of Multiplication.(a ⋅ b) ⋅ c (1
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Which expression correctly demonstrates the Commutative Property of Multiplication?(1 point) Responses x+4+15=15+4+xx plus 4
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Use the Commutative Property of Multiplication to rewrite the algebraic expression:(1 point) Responses z33+k17z to the 33th
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Antoine goes to the mall to buy new shoes and jerseys. He pays a set rate per pair of shoes and a set rate per jersey, and he
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Which one of the following represents an exothermic reaction?(1 point)Responses Cooking an egg until it is not runny. Cooking an
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Use the Periodic Table to complete the questions:How many valence electrons do an atom of silicon (Si) and an atom of Hydrogen
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2NaOH + CuCl2 → Cu(OH)2 + 2NaClWhat type of equation is represented above? (1 point) Responses decomposition decomposition
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How many valence electrons do a magnesium atom and a chlorine atom have?Periodic Table (1 point) Responses Magnesium has one
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Use the reaction to complete the sentence.2CO + O2 → 2CO2 Carbon monoxide and oxygen combine to produce carbon dioxide. The
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Which event is an example of an exothermic reaction?(1 point)Responses combustion combustion evaporation evaporation melting ice
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The left side of a chemical reaction is shown.Mg(OH)2 + 2HNO3 → Which type of reaction will the reactants undergo? (1 point)
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Silver bromide, AgBr, decomposes into silver (Ag) solid and bromine, (Br2) liquid at room temperature. Which ratio of silver to
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Which statement correctly compares synthesis and decomposition reactions?(1 point)Responses Synthesis and decomposition
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Acid-base reactions can also be classified as which type of reaction?(1 point)Responses synthesis synthesis double replacement
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Which statement comparing ionic and covalent bonds is correct?(1 point)Responses Covalent bonds tend to be less polar than ionic
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According to the Law of Conservation of Mass, if 98 g of carbon dioxide (CO2) is produced in a reaction between oxygen (O) and
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According to the Law of Conservation of Matter, what happens to atoms during a chemical reaction?(1 point)Responses The atoms in
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The following equation does not demonstrate the Law of Conservation of Mass. How can it be changed so that the equation does
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How many atoms of carbon (C) are present in the reactants of the following chemical equation?2C6H10 + 17O2 → 12CO2 + 10H2O (1
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Which of the following equations shows a chemical change?(1 point)Responses 21986Rn → 21584Po+α 219 over 86Rn → 215 over
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Use the table to answer the question.Bonds and Bond Energies for Given Reactions Reaction Bonds Present Energy of Bonds Broken
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Use the information in the table to answer the question.Bond Between Atoms and Their Respective Electronegativity Bond Bond
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Use the information in the table to answer the question.Bond Between Atoms and Their Respective Electronegativity Bond Bond
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Which fact must be true if a relationship is endothermic?(1 point)Responses More energy is needed to form the bonds on the
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Which statement explains the relationship between the amount of energy it takes to break a bond and the amount of energy
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The Reward of Enterpriseby Ward Muir Seafaring people are odd in that way—I don’t mean in their ignorance of swimming,
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Why is evaluating evidence an important part of making an inference when reading a literary text?(1 point)Responses An inference
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Why should readers support their analysis of a literary text with strong textual evidence?(1 point)Responses to show they have
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What does the word explicit mean?(1 point)Responses ambiguous ambiguous exciting exciting clearly expressed clearly expressed
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are you cool
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write an Explanatory Text Portfolio that explains the benefits and drawbacks of technology being integrated into most aspects of
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What are characteristics of a strong concluding statement?Select the two correct answers.(1 point) Responses restates the thesis
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What is a thesis statement?(1 point)Responses the final sentence of an informative or explanatory text the final sentence of an
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"Ignaz Semmelweis Saved Lives: Wash Your Hands"by Dr. Howard Markel On this date in 1850, a prickly Hungarian obstetrician named
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How does a cause-and-effect text structure build ideas in a text?(1 point)Responses It tells why something happened and then
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Is the equation 3−5⋅(81√4)33−4=3−6 true or false? Select the response that correctly answers the question and provides
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Use the properties of exponents to determine whether the equation 10−13=−10−−√3 is true or false. Select the response
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Which of the following is an equivalent expression for 512125√3 when simplified using exponent properties?(1 point)Responses
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Using the properties of exponents to generate an equivalent expression, which of the following would be the rational exponent on
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"Disappearing Ohio Butterflies Affects All Insects"by Vicky Stein For my 11th birthday, I received a perfect, weird, road-trip
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"Disappearing Ohio Butterflies Affects All Insects"by Vicky Stein For my 11th birthday, I received a perfect, weird, road-trip
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"Disappearing Ohio Butterflies Affects All Insects"by Vicky Stein For my 11th birthday, I received a perfect, weird, road-trip
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