Empirical formulas - Study guides, Class notes & Summaries

CHM113 Final Exam Questions With 100% Correct Answers Which of the following is NOT a compound? - answerO2, oxygen is a molecule What is the chemical symbol for the element, copper? - answerCu Which property is a chemical property - answerflammability Which of the following mixtures is heterogeneous? - answergranite Which of the following processes is/are physical changes? Select all that apply - answerwater evaporating, tearing a piece of aluminum in half Which unit is NOT an SI base un...

Clinical Psychology Exam Notes 2023 Contemporary Clinical Psychology - Focuses on psychological phenomena encountered in a clinical context -Proliferation of pseudoscientific understandings, assessments, and treatments Characteristics of Scientific Clinical Psychology - Claims can be tested empirically via systematic, data-based investigation Measurement strategies are: -Objective -Reliable -Valid -Useful Findings can be replicated independently Potential alternative explanations...

CHEMISTRY QUESTIONS AND CORRECT ANSWERS[2024)20Practice 1-1 (HW) Stoichiometry and Limiting Reactants Show your work for every calculation. Round your answer to the correct number of significant digits needed. 1. a. A sample of nicotine containing 0.35 moles has a mass of 56 grams. What is the molar mass of nicotine? 160 g/mol b. Nicotine is 74.1% carbon, 8.6% hydrogen, and 17.3% nitrogen by mass. What are its empirical and molecular formulas? EF = C5H7N MF= C10H14N22. Butane lighters wor...

Quantitative Data and it's Uses - correct answer Consists of numerical data, quantifying a qualitative statement. For ex - saying someone is intelligent and measuring their IQ - Makes our observations more explicit. Makes aggregating and summing up data easier. Opens possibility of statistical analysis, ranging from simple to complex formulas and mathematical models. Any explicated, quantitative measure will be more superficial than the correspondin...

Organic compounds - Compounds that contain a chain of carbon atoms Number of electrons in carbons outer shell - 4 so can form 4 covalent bonds Carbon-Carbon bonds are... - non-polar and relatively strong Empirical formula - the simplest whole number ratio of atoms of each element in a compound molecular formula - a formula that tells us the actual number of atoms of each different element in a compound structural formula - a way of writing the formulas of an organic compound in which bonds...

Straighterline Chemistry Final Exam (ACTUAL) What is the term used for findings that are summarized based on a pattern or trend? a. Law b. Hypothesis c. Theory d. Phenomena e. Prediction - Answer a. Law Which of the following is a tentative explanation for a set of observations? Select one: a. Law b. Hypothesis c. Theory d. Phenomena e. Prediction - Answer b. Hypothesis If a liquid contains 60% sugar and 40% water throughout its composition then what is it calle...

What is the term used for findings that are summarized based on a pattern or trend? a. Law b. Hypothesis c. Theory d. Phenomena e. Prediction - Answer a. Law Which of the following is a tentative explanation for a set of observations? Select one: a. Law b. Hypothesis c. Theory d. Phenomena e. Prediction - Answer b. Hypothesis If a liquid contains 60% sugar and 40% water throughout its composition then what is it called? Select one: a. Solute b. Compound c. Homog...

CHM113 Final Exam Questions With 100% Correct Answers Which of the following is NOT a compound? - answerO2, oxygen is a molecule What is the chemical symbol for the element, copper? - answerCu Which property is a chemical property - answerflammability Which of the following mixtures is heterogeneous? - answergranite Which of the following processes is/are physical changes? Select all that apply - answerwater evaporating, tearing a piece of aluminum in half Which unit is NOT an SI base un...

Straighterline Chemistry Final questions and answers 100% verified. What is the term used for findings that are summarized based on a pattern or trend? a. Law b. Hypothesis c. Theory d. Phenomena e. Prediction - correct answers.a. Law Which of the following is a tentative explanation for a set of observations? Select one: a. Law b. Hypothesis c. Theory d. Phenomena e. Prediction - correct answers.b. Hypothesis If a liquid contains 60% sugar and 40% water thr...

Isotopes have the same ___ but different ___ - ANSWERatomic number, mass numbers How do you find average atomic mass with isotopes - ANSWERamu=(%xisotope mass)+(%xisotope mass) Group 1 elements - ANSWERalkali metals group 2 elements - ANSWERalkaline earth metals Group 5 elements - ANSWERpnictogens Group 6 elements - ANSWERcalcogens group 7 elements - ANSWERhalogens group 8 elements - ANSWERnoble gases Diatomic molecules - ANSWERH2, N2, O2, F2, Cl2, Br2, I2 what does th...