Chem 1311 Study guides, Class notes & Summaries

Chem 1311 Review 1Multiple ChoiceIdentify the choice that best completes the statement or answers the question. ____1.Which of the following statements isincorrect?a.A body in motion possesses kineti c energy becauseof its motion.b.An object possesses potential energy because of itsposition or composition.c.Nuclear energy is an important kind of potentialenergy.d.Chemical reactions and physical changes thatrelease energy to their surroundings areendothermic.e.The Law of Conservation of Matter an...

Solutions can exist in all 3 physical states correct answer: Solid: metal alloys (2 or more metals) Gas: Ex: Air — made of nitrogent oxygen and other gases Liquid: this is what we will be primarily discussing in this chapter, mostly solutions where water is the solvent AKA aqueous solutions Nonpolar solvents dissolve_______ correct answer: Nonpolar solutes Polar solvents dissolve______ correct answer: Polar solutes and many iconic solutes Polar correct answer: unequal sharing of...

Atoms correct answer: the basic building blocks of all matter. The smallest unit of an element that can combine with other elements. Subatomic Particles correct answer: The smaller particles that make up atoms - protons, neutrons and electrons. cathode rays correct answer: streams of electrons that are produced when a high voltage is applied to electrodes in an evacuated tube Radioactivity correct answer: The spontaneous emission of radiation by an unstable atomic nucleus Nuclear...

Chem 1311 exam 1 Questions And Answers

CHEM 1311 - Exam 1 Questions With Complete Solutions

CHEM 1311 Exam 2 Questions and Answers All Correct NH3 (aq) + HNO3 (aq) = NH4NO3 (aq) is classified as what kind of reaction? - Answer-B) acid-base (produces salt and water) Which solution will be the poorest conductor of electrical current? - Answer-A) Sucrose C12H22O22 1.0 M aqueous solution of the following substances are prepared. Which one would you expect to have the lowest electrical conductivity? - Answer-B) CH3CH2OH (ethanol) which of the following is not a redox reaction? - ...

Which of the following has 8 valence electrons correct answer: b. Kr Which of the following does not have 8 valence electrons correct answer: a. Ca+ & Sr+ Lattic energy is correct answer: a. the energy required to convert a mole of ionic solid into its constituent ions in the gas phase In the ionic bond formation, the lattic energy of ions, _______ as the magnitude of the ion charges _______, and radii __________ correct answer: d. increases, increase, decrease The type of compou...

CHEM 1311 Exam 1 Questions with Correct Answers chemical property - Answer-the way substances may change/react to become another substance physical property - Answer-can be observed without any change to identification and/or composition matter - Answer-anything that has mass and occupies space reactivity, stability, flammability, toxicity, fermentation - Answer-examples of chemical properties malleability, ductility, conductivity, viscosity, boiling/melting point - Answer-examples...

Elements from opposite sides of the periodic table tend to form what? correct answer: Ionic compounds Which of the following has three significant figures? correct answer: 0.0803 Predict the empirical formula of the ionic compound that forms from aluminum and oxygen? correct answer: Al2O3 Which of the following would be the appropriate pH for a substance that tastes bitter, produces hydroxide ions in solution and ionizes completely(100%)? correct answer: 13 Which one of the compo...