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Questions (232)
Using the graphic below, identify the following example chemical reactions as endothermic (right-side) or exothermic (left-side)
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Left-side Graph Right-side Graph 1Any reaction that absorbs more energy from the surroundings to proceed. 2Combustion reaction
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Left-side Graph Right-side Graph Any reaction that absorbs more energy from the surroundings to proceed. Combustion reaction in
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A certain chemical reaction's reactants have an energy of 1,341 kJ/mol and the products have an energy of 1,646 kJ/mol. Is this
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A student completes a problem solving for the energy change that occurs when steam condenses on a glass to form condensation as
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In the reaction seen here, use the data provided to calculate the total energy of the reactants only: (1 point) Responses
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Question Review the model seen here. Select the best student description of the reaction. (1 point) Responses The reaction is
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Critique the following statements and determine if there is a significant difference between the treatments. Two high school
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Question Mr. Gomez always plays music when he gives a test. He plays relaxing, classical music at a low volume. Ms. Yamamoto
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Use the table to answer the question. Option 1 38 33 45 36 37 43 42 38 45 40 Option 2 34 49 42 46 39 38 45 43 42 38 What is the
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Use the image to answer the question. A researcher is testing a new fertilizer to determine whether it encourages plant growth.
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Joseph creates the following table from data from a two-treatment statistical experiment. Which answer best describes the
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When treatment groups are re-sorted over and over using random assignment in order to create a randomization distribution, what
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The range of response variable measures for a treatment group sampled from a population equals 8 . Which of the following could
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The scores for an online exam for a class of 30 students were randomly split into two groups of equal size, Group A and Group B.
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Carson is running an experiment on a group of mice. They are testing the effectiveness of a new muscle growth formula. Which
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Kelvin is running an experiment on the growth of fern house plants with artificial light versus real light. Which option would
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Kelvin is running an experiment on the growth of fern house plants with artificial light versus real light. Which of the
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Zamar loves baking, and he wants to investigate how different temperatures will affect proofing time. He makes three batches of
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On page 1 of this lesson, you read about the following experiment: Rainbow Labs is developing a pill that treats Fermatisis, a
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Which of the following best explains how the American, French, and Haitian Revolutions are related?(1 point) Responses King
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What was the usual result for democracies and republics before the American Revolution?(1 point) Responses Both democracies and
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Which excerpt from the primary source—The Confessions of Nat Turner—supports the statement that he believed he was destined
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Use the excerpt to answer the question. “When they have come to an agreement, it happens that adult persons bind themselves in
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Which of the following excerpts from The Interesting Narrative of the Life of Olaudah Equiano describes how people were bought
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How were many of the treaties signed between Indigenous communities and the American government unfair?(1 point) Responses These
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Which of the following statements best assesses the effects of the U.S. Constitution and Bill of Rights on other governments?(1
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How did Greek and Roman democracies impact the design of the U.S. government as it was being created in the eighteenth
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Which of the following best identifies how Greek and Roman democratic ideals became part of the U.S. Constitution and Bill of
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Which headline best explains how Napoleon’s invasion of Spain influenced Latin American independence movements?(1 point)
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Which of the following statements identifies a way Enlightenment ideas influenced Latin America?(1 point) Responses The Spanish
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A student writing an essay identifying the causes of independence movements in Latin American and the Caribbean would include
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Which statement best describes an economic impact of the American Revolution?(1 point) Responses People from the lower classes
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Which statement best describes a social impact of the American Revolution? (1 point) Responses Many states gave the right to
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A researcher builds a statistical model to determine how many credit card charges are fraudulent. Use the model y = 1+0.02x to
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Choose which type of statistical method is described by the statement.(6 points) Observational Study Survey Experiment
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To best explain how energy is conserved, even through redox reactions, place the following into a logical sequence from
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Which action occurs at an electrode of a galvanic cell?(1 point) Responses electron transfer electron transfer anion transfer
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Determine if each statement is true or false.(4 points) True False Fluorine is the most electronegative element and will always
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In the formation of a compound in a synthesis reaction, the atom that gains one or more electrons is ________________________.(1
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In general, atoms and compounds exchange electrons in order to ___________________.(1 point) Responses convert sunlight to
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Assign the oxidation number that best fits each example below. Answers may be used once, more than once, or not at all.(6
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When we think of a rusty ship as seen here, what oxidation state would we assign to the original reactant of oxygen in the
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Jordan Middle School is deciding between three locations for their school field trip: the aquarium, natural history museum, or
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Determine if the question is best answered by using an observational study.(3 points) Yes, an observational study is best. No,
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Question 6 What is the most logical next step in the movement of energy stored as electrons that have been transferred to sugars
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Question 3 In photosynthesis, oxygen is produced when water is split and electrons and hydrogens are attached to carbon dioxide
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How does frame (b) Action Spectrum best support the image seen here of how a chloroplast collects and emits light energy as
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In 1883, a researcher, named Theodor Engelmann, designed and completed an experiment to see which colors of light resulted in
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Nuclear energy from the sun drives across space is electromagnetic radiation or light, which is another form of energy
All
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Please determine if each statement is true or false. (4 points) True False 1.]Oxidation and reduction reactions are paired.
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Use the image again and determine which elements have been oxidized, reduced, or unchanged. (4 points) Oxidized Reduced
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Study the image seen here very closely you'll be able to see how the atoms recombine based on the colors of the elemental
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Study the image seen here very closely you'll be able to see how the atoms recombine based on the colors of the elemental
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In the image above, we can see the waste product or result of photosynthesis forming bubbles. From the simplified reaction,
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e can confirm rusting is an example of redox because _______________________.(1 point) Responses electrons are shifted among
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atch the stem with the element it best describes.(6 points) Oxygen Iron Is the Reducing Agent Is Oxidized Becomes more positive
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Which of the following situations describes a dataset that contains an outlier?(1 point) Responses the salaries at a Fortune 500
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Differentiate between observational studies, surveys, and experiments to determine which of the following questions could be
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A researcher is analyzing whether cardiovascular workouts increase an individual’s reflexes. She randomly assigns half of a
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How can we use primary and secondary sources to analyze the resistance of enslaved peoples in the Americas?(1 point) Responses
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Identify similarities and differences between the experiences of those involved in the systems of indentured servitude and
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Identify similarities and differences between the experiences of those involved in the systems of indentured servitude and
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How did chattel slavery and the encomienda system develop and impact the Americas?(1 point) Responses Each system developed as a
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Explain why enslaving the Indigenous peoples of the Americas was largely unsuccessful in filling the need of the plantations.(1
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Analyze Indigenous resistance movements from the colonial period to the post-Revolutionary War period. (1 point) Responses
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Describe European and American colonizers’ relationships with Indigenous Americans.(1 point) Responses From the moment of
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Describe European and American colonizers’ relationships with Indigenous Americans.(1 point) Responses From the moment of
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Describe European and American colonizers’ relationships with Indigenous Americans.(1 point) Responses From the moment of
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A local bank serves 43,900 customers. The bank generates a list of all its customers, assigns them consecutive IDs, then sends
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What three features should be present for a survey to be generalized to a larger population?(1 point) Responses random selection
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Researchers want to learn more about the effects of Respiratory Syncytial Virus (RSV) on pregnant people. Which reason explains
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Bessie wants to find out the fraction of pet owners whose favorite pet is a cat. She conducts a small survey at the local pet
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A pharmaceutical company wants to study the effectiveness of a new drug in treating migraine headaches. For its trial, it
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Cesar wants to determine whether students who eat breakfast in the morning receive higher grades in their first-period class.
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Which of the following statements is true about hydrogen bonds. Select all that apply.(2 points) Responses Hydrogen bonds result
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What change occurs to cause steam to condense into water?(1 point) Responses The addition of kinetic energy causes the motion of
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Question Experimental design: Heat samples of water and ethanol in two separate beakers using a Bunsen burner. Measure the
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Question As part of an investigation into the strength of electrostatic forces between molecules of water, a student will
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In the graph seen here, in what state of matter does water exist between points 'B' and 'C'? (1 point) Responses Liquid, because
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(8 points) Intermolecular Bonds Intramolecular Bonds The weaker of the bond types in this image are __________________. The bond
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(16 points) True False At the label 'A" the substance is at the lowest recorded kinetic energy. Between label 'D' and 'E' the
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Which statement correctly describes the relationship between a substance's boiling point, molecular structure, and electrostatic
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vAs the kinetic energy of particles increases, (1 point) Responses the substance's temperature decreases. the substance's
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Match the following bulk property with the best description.(9 points) Put responses in the correct input to answer the
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In a certain neighborhood, the average number of candies received while trick or treating is 50 with a standard deviation of 12.
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Trina trick or treated in the same neighborhood and received 47 pieces of candy. Will her z-score be positive or negative? How
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In a certain neighborhood, the average number of candies received while trick or treating is 50 with a standard deviation of 12.
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The mean weight of a heard of white-tailed deer is 140.3 pounds, with a standard deviation of 7.2 pounds. What is the
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Estimate the area percentage under a normal curve between the z-scores of -0.24 and 1.19. Round your answer to the nearest
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The salaries of a population of journalists is normally distributed with a mean salary of $78,000 and a standard deviation of
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Use the Empirical Rule to answer the three questions that follow. Male shoe sizes within a certain community are normally
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What is the best estimate of the standard deviation for the distribution shown in the histogram? (1 point) Responses answer
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Find the mean and standard deviation of the following data set. Round to the nearest tenth. 11, 14, 15, 15, 16, 16, 18, 18, 19,
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A data set has a mean 200 and a standard deviation of 10. Which statement is correct?(1 point) Responses A value chosen randomly
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Which action happens at the microscopic scale as the temperature of a substance decreases and it eventually freezes?(1 point)
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The warm water sample in the test(1 point) Responses held fewer paper clips because the hydrogen bonds were further apart due to
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As kinetic energy of particles increases, (1 point) Responses the substance's vapor tension increases. the substance's vapor
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The ? would be the independent variable located on the x-axis. It is the variable selected and maintained by the experimenter.
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Select the hypothesis that would best be supported by the data collected.(1 point) Responses If temperature increases, then more
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