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(a)
Interpretation: The statement, every spring,onehas congestion and a runny nose should be classified as an observation, a hypothesis, an experiment of a conclusion.
Concept Introduction: In research, observation must be the first step. This step decides the direction of research. The hypothesis can be defined as the thought that one assumes to be found or it can be the prediction of specific belief about the scientific idea. An experiment is the research based on scientific ways and methods that gives final conclusion of the experiment.
(b)
Interpretation: The statement, an overweight patient decides to exercise more to lose weightshould be classifiedas an observation, a hypothesis, an experiment of a conclusion.
Concept Introduction: In research, observation must be the first step. This step decides the direction of research. The hypothesis can be defined as the thought that one assumes to be found or it can be the prediction of specific belief about the scientific idea. An experiment is the research based on scientific ways and methods that gives final conclusion of the experiment.
(c)
Interpretation: The statement, many research studies have linked obesity to heart disease should be classified as an observation, a hypothesis, an experiment of a conclusion.
Concept Introduction: In research, observation must be the first step. This step decides the direction of research. The hypothesis can be defined as the thought that one assumes to be found or it can be the prediction of specific belief about the scientific idea. An experiment is the research based on scientific ways and methods that gives final conclusion of the experiment.
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Chapter 1 Solutions
EP BASIC CHEMISTRY-STANDALONE ACCESS
- please solve this problem by telling me which boxes to check. Thank you in advance!arrow_forwardExplain what characteristics of metalloids are more like metals and which are more like nonmetals, based on Na, Mg, Fe, Cl, and Ar.arrow_forwardplease solve this, and help me know which boxes to check. Thank you so much in advance.arrow_forward
- Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. Describe how electronegativity is illustrated on the periodic table including trends between groups and periods and significance of atom size.arrow_forwardDefine the term “transition.” How does this definition apply to the transition metals?arrow_forwardDescribe how the properties of the different types of elements (metals, nonmetals, metalloids) differ.arrow_forward
- Use a textbook or other valid source to research the physical and chemical properties of each element listed in Data Table 1 using the following as a guideline: Ductile (able to be deformed without losing toughness) and malleable (able to be hammered or pressed permanently out of shape without breaking or cracking) or not ductile or malleable Good, semi, or poor conductors of electricity and heat High or low melting and boiling points Occur or do not occur uncombined/freely in nature High, intermediate, or low reactivity Loses or gains electrons during reactions or is not reactivearrow_forwardProvide the Physical and Chemical Properties of Elements of the following elements listedarrow_forwardQuestions 4 and 5arrow_forward
- For a titration of 40.00 mL of 0.0500 M oxalic acid H2C2O4 with 0.1000 M KOH, calculate the pH at each of the following volume of KOH used in the titration: 1) before the titration begin;2) 15 mL; 3) 20 mL; 4) 25 mL; 5) 40 mL; 6) 50 mL. Ka1 = 5.90×10^-2, Ka2 = 6.50×10^-5 for oxalic acid.arrow_forwardPredict the major organic product(s), if any, of the following reactions. Assume all reagents are in excess unless otherwise indicated.arrow_forwardPredict the major organic product(s), if any, of the following reactions. Assume all reagents are in excess unless otherwise indicated.arrow_forward
- Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning
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