Classify the statements pertaining to elements and compounds as either true or false.TrueFalseCompounds must contain at least [wo elements.Compounds are pure substances whereas elements are mixturesCompounds cannot be broken down further by processes suchas filtration.Compounds may be broken down into simpfer substances through:chemical processes.A compound is a physical mixture of simpler substances.

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Introductory Chemistry For Today

8th Edition

ISBN:9781285644561

Author:Seager

Publisher:Seager

Chapter2: Atoms And Molecules

Section: Chapter Questions

Problem 2.69E

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Similar questions

Sketch a magnified view (showing atoms and/or molecules) of each of the following, and explain why the specified type of mixture is a heterogeneous mixture of two different compounds. a homogeneous mixture of an element and a compound.
A 17th-century chemist wrote of the “simple bodies which enter originally into the composition of mixtures and into which these mixtures resolve themselves or may be finally resolved.” What is being discussed?
What is acompound? What are compounds composed of? What is true about the composition of a compound, no matter where we happen to find the compound?
Explain the termselement, afoul, and compound. Provide an example and microscopic drawing of each.
Two basic laws of chemistry are the law of conservation of mass and the law of constant composition. Which of these laws (if any) do the following statements illustrate? (a) Lavoisier found that when mercury(ll) oxide, HgO, decomposes, the total mass of mercury (Hg) and oxygen formed equals the mass of mercury(ll) oxide decomposed. (b) Analysis of the calcium carbonate found in the marble mined in Carrara, Italy, and in the stalactites of the Carlsbad Caverns in New Mexico gives the same value for the percentage of calcium in calcium carbonate. (c) Hydrogen occurs as a mixture of two isotopes, one of which is twice as heavy as the other.
¡n a sample of a gaseous substance, more than 99% of the overall volume of the sample is empty space. How is this fact reflected in the properties of a gaseous substance compared with the properties of a liquid or solid substance?
Paragraph Styles ntroduction: Models are very important for chemists. You cannot see detailed features of a molecule, e vith a microscope. However, you can build a molecule that shows some of the properties that chemists letermined through experimentation. In this investigation, you will use a molecular model kit to assemb nodels of a few molecules. Question: what can you predict about the structures of molecules by building models? Procedure: You will need a molecular model kit to use for your group 2. Complete the table on the back of this note for drawings in procedure steps 3, 4, and 5. 3. In your table, write the name and formula, and draw a Lewis structure of each molecule below. a. hydrogen bonded to hydrogen b. chlorine bonded to chlorine oxygen bonded to two hydrogen atoms carbon bonded to two oxygen atoms C. d. e. nitrogen bonded to three hydrogen atoms f. carbon bonded to four chlorine atoms g. nitrogen bonded to three fluorine atoms a. Look through your textbook, and choose…
TRUE OR FALSE 1. A heterogeneous mixture can be separated into pure substances, but a homogeneous mixture cannot. 2. A compound consists of elements combined in a fixed ratio.
Classify substance as a pure substance or a mixture. If it is a pure substance, classify it as an element or a compound. If it is a mixture, classify it as homogeneous or heterogeneous. CARBON MONOXIDE
Two or more substances in variable proportions, where the composition is constant throughout are a compound. an element. a heterogeneous mixture. a homogeneous mixture. a crystalline solid.
Mixtures can be classified as either homogeneous or heterogeneous. Compounds cannot be classified in this way. Why not? In your answer,explain what is meant by heterogeneous and homogeneous.
A substance composed of 2 or more elements in a fixed, definite proportion is considered a homogeneous mixture. a heterogeneous mixture. a molecular compound an alloy. a solution.

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