Lavoisier Study guides, Class notes & Summaries

Animal Nutrition (ANSC 221) Exam #1 With 100% Correct Answers 2024

Period What do each color in the periodic table represent? Group What do each color in the periodic table represent? Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:15 Full screen Element What is this? Main Group Elements What are the elements shown here in green and red represent? Transition Metals What are the elements shown here in yellow? Inner Transition Metals What are the elements show...

Chapter 1—Molecular Reasons MULTIPLE CHOICE 1. Which of these is the best definition of matter? a. The pull of gravity on an object. b. Anything that has weight and volume. c. Anything that has mass and occupies space. d. Anything that is directly proportional to weight. e. The measure of the amount of space an object occupies. ANS: C PTS: 1 2. Which of these statements is correct? a. The amount of carbon on earth is essentially constant. b. The amount of carbon on earth fluctuates...

Antoine Lavoisier ( ) correct answersExplained the nature of combustion and discovered the Law of the Conservation of Mass 1) law of conservation of mass correct answers-in a chemical reaction, matter is neither created nor destroyed -total mass of reactants = total mass of products -In a chemical reaction, matter is not created or destroyed ex. -a bomb:-when it blows up-new compounds are formed-the mass stays the same. -burning gas:-gas and oxygen combine to produce carbon dioxide an...

Chapter 2: Atoms, Molecules, and Ions 1. The first people to attempt to explain why chemical changes occur were A) alchemists B) metallurgists C) physicians D) physicists E) the Greeks ANS: E PTS: 1 DIF: Easy REF: 2.1 KEY: Chemistry | general chemistry | early atomic theory MSC: Conceptual 2. The Greeks proposed that matter consisted of four fundamental substances: A) fire, earth, water, air B) fire, metal, water, air C) earth, metal, water, air D) atoms, fire, water, air E) atoms,...

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Chem 101 Ivy Tech Midterm Exam| Questions with Correct Answers Which of the following is considered a hypothesis (as opposed to an observation)? Correct Answer: Birds can fly because they have hollow bones Which of the following would be considered a theory? Correct Answer: Helium balloons float because helium is less dense than air. Which of the statements below is NOT part of the scientific method? Correct Answer: All of the above steps are part of the scientific method. Which stat...

Nutrient -ANSWER any chemical (element or compound) in the diet that supports normal reproduction, growth, lactation, or maintenance of life processes Nutrition -ANSWER The Study of the processes where feed nutrients are presented to and utilized by living cells for productive processes - maintenance, lactation, and growth Feed costs account for what percentage of production costs? -ANSWER 45-75% What do Basic nutritionists study? -ANSWER Metabolism; Cellular & sub cellular biochemistry...

Chapter 2: Atoms, Molecules, and Ions 1. The first people to attempt to explain why chemical changes occur were A) alchemists B) metallurgists C) physicians D) physicists E) the Greeks ANS: E PTS: 1 DIF: Easy REF: 2.1 KEY: Chemistry | general chemistry | early atomic theory MSC: Conceptual 2. The Greeks proposed that matter consisted of four fundamental substances: A) fire, earth, water, air B) fire, metal, water, air C) earth, metal, water, air D) atoms, fire, water, air E) atoms,...

Why were impenetrability and rebound two difficulties for the mechanical philosophy? They could not be explained in terms of purely mechanical principles, that is, they could not be explained if matter was inert and capable of moving only upon contact with other moving matter. Why did Newton claim that his active principles were not occult qualities? He argued that active principles are made manifest by observation and experiments, and are intelligible because they can be described math...