![Foundations of College Chemistry, Binder Ready Version](https://www.bartleby.com/isbn_cover_images/9781119083900/9781119083900_largeCoverImage.gif)
Concept explainers
(a)
Interpretation:
Hot tea has to be classified as a pure substance or a mixture.
Concept Introduction:
Matter can be classified into two type’s namely pure substance and mixture.
Pure substance: A single component that has a constant composition, irrespective of the
Example: Water, sugar etc.
Mixture: A mixture consists of more than one substance and the composition of a mixture is dependent on the sample. The separation of mixture into its components can be done by physical changes.
(b)
Interpretation:
Beach sand has to be classified as a pure substance or a mixture.
Concept Introduction:
Refer to part (a).
(c)
Interpretation:
Carbon dioxide has to be classified as a pure substance or a mixture.
Concept Introduction:
Refer to part (a).
(d)
Interpretation:
Cement has to be classified as a pure substance or a mixture.
Concept Introduction:
Refer to part (a).
(e)
Interpretation:
Zinc has to be classified as a pure substance or a mixture.
Concept Introduction:
Refer to part (a).
(f)
Interpretation:
Vinegar has to be classified as a pure substance or a mixture.
Concept Introduction:
Refer to part (a).
![Check Mark](/static/check-mark.png)
Want to see the full answer?
Check out a sample textbook solution![Blurred answer](/static/blurred-answer.jpg)
Chapter 3 Solutions
Foundations of College Chemistry, Binder Ready Version
- (a) Carbon and iron are both elements. What is an element?arrow_forwardYou are given 8.16 g of an unknown mixture of ethane gas and oxygen gas. You burn the unknown mixture in a sealed container and recover 0.788 g of water and also recover some carbon dioxide and ethane gas. (v) What was the mass of oxygen gas in the unknown mixture? (w) What was the mass of ethane gas in the unknown mixture? (x) What was the mass percent of oxygen gas in the unknown mixture?arrow_forwardWhich of the following are pure substances? Explain. (a) Calcium chloride, used to melt ice on roads, consists of two elements, calcium and chlorine, in a fixed mass ratio. (b) Sulfur consists of sulfur atoms combined into octatomic molecules. (c) Baking powder, a leavening agent, contains 26% to 30% sodium hydrogen carbonate and 30% to 35% calcium dihydrogen phosphate by mass. (d) Cytosine, a component of DNA, consists of H, C, N, and O atoms bonded in a specific arrangement.arrow_forward
- Give the names of appropriate element for (a)~(d) in the passages below. (1) (a) and (b) are elements that belong to period 5 and 6 in the periodic table, respectively. Both simple substances are solid under room temperature. To an aqueous solution containing cations of (a) and (b), dilute hydrochloric acid was dropped to produce white precipitate. Upon rinsing with boiling water, the precipitate was partially dissolved. (2) Both (c) and (d) are elements that produce stable trivalent cations in an aqueous solution. To an aqueous solution containing (c) and (d) as trivalent cations, aqueous ammonia was dropped to produce a gel-like precipitate. Upon the addition of concentrated aqueous sodium hydroxide, the precipitate was partially dissolved and the majority of (c ) was transferred to the supernatant.arrow_forwardWhich of the following will be homogeneous mixture? (A) All of them (B) N2 and Ar (C) C2H5OH and H2O (D) NH4Cl and H2O (E) C6H6 and C7H8arrow_forwardWhich of the following statements is false?arrow_forward
- Select the best answer or answers from the choices given: Which of the following does not describe a mixture? (a) properties of its components are retained, (b) chemical bonds are formed, (c) components can be separated physically, (d) includes both heterogeneous and homogeneous examples.arrow_forwardQUESTION 1 questions. Just give the answer only. Make sure that your answers are carefully numbered. Give short answers to each of the following questions. Do not copy the (a) A homogeneous mixture which contains water as a solvent is called (b) Ni(CIO4)2-6H2O is hydrated whereas Ni(CIO4)2 is (c) Nacl contains an bond whereas O2(g) contains a bond (d) A homogeneous mixture has a and composition (e) Temperature is an, because it does not depend on the amount of substance (f) The maximum number of electrons that an orbital can have is (g) The energy of the lowest level in the H atom is (h) Arrange the following subshells in the H atom in order of increasing energy: 3s 4d 2p 41 3d 2s 3p (i) Wavelength and frequency of, radiation have an relationship (i) In an atom, what is the maximum number of electrons that can have the following set of quantum numbers? n = 4, m =-1, m, = +% (k) Draw a 3d2 orbital and describe it in your own words. (1) Write the ground state electron configuration for…arrow_forwardWhich of these are a mixture, air, water, hydrogen chloride, or carban dioxidearrow_forward
- Which of the following is most likely going to be a heterogeneous mixture? (A) C10H8 and H2O (B) H2S and H2O (C) O2 and O3 (D) NaCl and CH3OHarrow_forwardQUESTION 1 questions. Just give the answer only. Make sure that your answers are carefully numbered. Give short answers to each of the following questions. Do not copy the (a) A homogeneous mixture which contains water as a solvent is called (b) Ni(CIO4)2·6H2O is hydrated whereas Ni(CIO4)2 is (c) NaCl contains an bond whereas O2(g) contains a bond (d) A homogeneous mixture has a and composition (e) Temperature is an because it does not depend on the amount of substance (f) The maximum number of electrons that an orbital can have is (g) The energy of the lowest level in the H atom is (h) Arrange the following subshells in the H atom in order of increasing energy: 3s 4d 2р 4f 3d 2s 3p (i) Wavelength and frequency of radiation have an relationship (i) In an atom, what is the maximum number of electrons that can have the following set of quantum numbers? n = 4 , m = -1 , ms = +½ (k) Draw a 3dx2- orbital and describe it in your own words. (1) Write the ground state electron configuration…arrow_forward(a) Atoms are very small compared to objects on the macroscopic scale. The radius of a aluminum atom is 143 pm. What is this value in meters and in centimeters? m cm (b) The mass of a single aluminum atom is 4.48×10-23 g. Suppose enough Al atoms were lined up like beads on a string to span a distance of 37.7 cm (15 inches). How many atoms would be required? atoms What mass in grams of Al would be used? g Could you weigh out this amount of aluminum using a typical laboratory balance? (c) Taking the density of aluminum metal to be 2.70 g/cm³, calculate the mass of metal needed to form a piece of Al wire with the same length as the distance in b, but with a diameter of 1.00 mm. Hint: The volume of a cylinder is n times its radius squared times its height. (V = n r² h) How many aluminum atoms does this represent? g atomsarrow_forward
- Chemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub CoIntroductory Chemistry: An Active Learning Approa...ChemistryISBN:9781305079250Author:Mark S. Cracolice, Ed PetersPublisher:Cengage LearningLiving By Chemistry: First Edition TextbookChemistryISBN:9781559539418Author:Angelica StacyPublisher:MAC HIGHER
![Text book image](https://www.bartleby.com/isbn_cover_images/9781305079250/9781305079250_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9781559539418/9781559539418_smallCoverImage.gif)