Biochemistry OA
Western Governers University
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Exam (elaborations)
WGU D425 Chemistry Pre-Assessment Questions with Answers
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--19February 20252024/2025A+Available in bundle
- A chemical equation is balanced by changing or adding 
a. chemical symbols 
b. subscripts 
c. coefficients 
d. reactants Ans-c. coefficients 
 
A compound differs from a mixture because it 
a. always remains frozen even at high temperatures 
b. is formed from two cations 
c. is held together by chemical bonds 
d. can form only in the presence of heat energy Ans-c. is held together by chemical bonds 
 
A covalent compound made of one sulfur and two oxygen atoms would be named 
a. sulfur dioxide 
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Exam (elaborations)
Introduction to chemistry WGU D425 |1083 Questions with verified answers
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--189February 20252024/2025A+Available in bundle
- to the temperature in the Kelvin scale at constant pressure. 
 
V ∝ T Ans-Charles's law 
 
________ is defined as the log of the reciprocal of molar concentration of hydronium ions [H3O+]. Ans-pH 
 
________ is the amount of substance in a certain volume of solution. It is defined as the number of moles of solute in a liter of solution. It is also referred to as the molar concentration of a solution. Ans-Molarity 
 
________ metals (such as Na) give out 1 electron. Ans-Alkali 
 
________ or...
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Exam (elaborations)
Introduction to chemistry WGU D425 Questions with verified answers.
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--4February 20252024/2025A+Available in bundle
- Introduction to chemistry WGU D425 Questions with verified answers.
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Exam (elaborations)
WGU Chemistry D425 Key Terms
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--5February 20252024/2025A+Available in bundle
- atom Ans-the smallest unit of matter that retains the properties of that matter 
 
chemical bond Ans-a force that holds two or more atoms together 
 
chemical formula Ans-a formula consisting of atomic symbols and subscripts to represent the number and types of atoms within a molecule or a compound 
 
chemical potential energy Ans-energy stored in atoms, molecules, and chemical bonds which make up matter 
 
chemical property Ans-describes the ability of a substance to undergo a specific chemical...
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Exam (elaborations)
WGU OA KEY POINTS UPDATED Chemistry D425 questions with verified answers
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--12February 20252024/2025A+Available in bundle
- WGU OA KEY POINTS UPDATED Chemistry D425 questions with verified answers
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Exam (elaborations)
WGU D425 - INTO TO CHEMISTRY questions with verified answers
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--6February 20252024/2025A+Available in bundle
- Atom Ans-the smallest units of matter that retain the properties of that matter. 
 
Can matter be a mixture or pure substance? Ans-Yes, it can be both. 
 
Chemistry Ans-the study of matter and its interactions 
 
Elements Ans-atoms of the same type grouped together. 
 
How do you get potential energy out of chemicals? Ans-Breaking and reforming 
 
Is an ionic compound written as a molecular formula? Ans- 
 
Is an ionic compound written as a molecular formula? T or F Ans-False 
 
Mass Ans-A measu...
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