AWhat I have learned?Answer the following questions.1. Can a physical change occur even if there is no chemical change? and vice versa?2. Is it possible that two things that have identical physical properties will have differentchemical property? Give an example.3. In any reactions, which is more reliable to give accurate measurement, physical orchemical property?4. What is the difference between elements and compounds? Give example of each.5. How do a molecule and a compound differ?6. Are all compound can be molecules? How about vice versa? Why or why not?7. Does a physical appearance of the product affect its chemical quality? How about viceversa?8 When can each method be used in separating the components of a mixture?1.

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General, Organic, and Biological Chemistry

7th Edition

ISBN:9781285853918

Author:H. Stephen Stoker

Publisher:H. Stephen Stoker

Chapter1: Basic Concepts About Matter

Section: Chapter Questions

Problem 1.36EP: Consider two boxes with the following contents: the first box contains 10 blue paper clips and 10...

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Similar questions

A material is believed to be a compound. Suppose you have several samples of this material obtained from various places around the world. Comment on what you would expect to find upon observing the melting point and color for each sample. What would you expect to find upon determining the elemental composition for each sample?
In Chapter 3, we learned that all matter is composed of atoms. In this chapter, we learned that most common substances are either compounds or mixtures of compounds. How can these both be true? Explain.
Consider two boxes with the following contents: the first box contains 10 blue paper clips and 10 red paper clips; the second contains the same number of each color of paper clip with the difference that each blue paper clip is interlocked with a red paper clip. Which box has contents that would be an analogy for a mixture, and which box has contents that would be an analogy for a compound?
Suppose someone emptied ball bearings into a container of salt. Could you separate the ball bearings from the salt? How? Would your method involve no change, be a physical change, or be a chemical change?
How can you distinguish an element, from a compound, from a solution, from a heterogeneous mixture? Explain
Which of the following is true about compounds?a. Compounds are pure substances that are composed of two or more elements in a fixed proportion.b. Compounds can be broken down chemically to produce their constituent elements or other compounds.c. Both A and B are correct.d. Neither A nor B is correct
What is the difference between a mixture, and a compound. Give 3 examples of each.
1. Describe the color of the mercury(II) oxide. 2. Describe what happens to the mercury(II) oxide when it is heated. 3. What is the shiny metallic substance coating the walls of the test tube? Is it an element or compound? 4. Describe the result of the oxygen test that is performed at the end of a mercury decomposition experiment. Is the oxygen an element or compound?
1. Why does the solid water molecules have more gaps than liquid water molecules? 2. How does temperature and pressure affect the phase changes of matter? 3.. How are the molecules of water arranged in the three states of matter (solid, liquid, gas)?
How is a molecule different from a compound? How is an atom different from an element?
If you compare the properties that you know of these materials that you use daily: sugar, vinegar, alcohol, oil, you can affirm that they are different, right? They could not confuse the oil with vinegar, or with alcohol. But... here are some facts to think about. Sugar is the common name for the compound sucrose, a substance made up of C, H and O. Vinegar is an aqueous solution containing 4% acetic acid, which is responsible for the typical smell and taste. Acetic acid is a substance made up of C, H and O. Pharmacy alcohol is a solution containing 96% ethanol and 4% water. Ethanol is a substance formed by the elements C. H and O. Edible oil is a mixture of different substances among which triglycerides predominate. These are substances formed by C. H and O. According to the data: a) What similarities can you point out between the different compounds mentioned? b) To what could you attribute the differences in the properties of these substances? c) What conclusions can you draw?
This image represents a particulate view of a sample of matter. Classify the sample according to its composition. a) The sample is a pure element. b) The sample is a homogeneous mixture. c) The sample is a compound. d) The sample is a heterogeneous mixture.

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