
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Question
Which of the following is best characterized as a heterogeneous mixture?
Group of answer choices
(a) Air
(b) Sandy Dirt
(c) An aqueous solution of NaCl
(d) Electrum (an alloy of gold and silver)
(e) Clear Diamond
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by stepSolved in 2 steps

Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- Potassium chloride is a salt substitute. It consists of potassium cations and chloride anions. Potassium chloride would be classified as: a) an element b) an ionic compound c) a molecular compound d) a molecular salt.arrow_forwardAre each of the following things good or bad in a distillation? (a) The distillation stops at one point, and the temperature drops. (b) The material in the distilling flask boils violently and some sloshes up and into the condenser (c) You forget to run water through the condenser. (d) Distillate drops out of the condenser at the rate of about one drop per second.arrow_forwardOn average the body is 60% water by mass. How many water molecules are present in a 68 kg person (about 150 lb) assuming they are 60% water by mass?arrow_forward
- What chemical test(s) could you use to distinguish solid barium chloride from solid barium sulfate?arrow_forward(a) What is the volume (in km³) of Avogadro's number of sand grains if each grain is a cube and has sides that are 1.6 mm long? 2470000 ✔ km³ (b) How many kilometers of beaches in length would this cover if the beach averages 123 m in width and 12.1 m in depth? Neglect air spaces between grains. 1840 kmarrow_forwardWilla weighs a clean, dry, empty crucible and finds it to have a mass of 95.83 g. After putting a spoonful of an unknown hydrate into it, she finds that the mass has increased slightly to 99.87 g. She heats the crucible and its contents, and finds that the mass has dropped to 97.22 g. Willa is told by her teacher that the molar mass of the anhydrous salt is 75.65 g.arrow_forward
- Write the balanced chemical reaction in the space below that is described by the following: Solid magnesium reacts with aqueous iron (II) nitrate to produce aqueous magnesium nitrate and solid iron.arrow_forwardIn an experiment, a student took a 12.2 g sample of table sale and chemically separated the chlorine from the sodium. He determined that there were 5.2 g of chlorine in the sample. What is the percent composition of each element in the table salt?arrow_forwardA sample contains one or more of the ions: aluminum, calcium, copper(II), iron(III); upon addition of NH3, after centrifuging, it looks like the picture shown below. For each metal put in the correct letter: P = definitely present, A = definitely absent, U = uncertain, can't tell if present or absent. aluminum = , calcium = , copper = , iron = .arrow_forward
- Which of the following are exothermic reactions and which are endothermic? (a) the burning of methane O exothermic O endothermic (b) the explosion of dynamite O exothermic endothermic (c) the combination of zinc and sulfur to form zinc sulfide O exothermic O endothermic (d) the burning of iron in chlorine O exothermic endothermic (e) the neutralization of a strong acid by a strong base O exothermic endothermic (f) the burning of methane O exothermic O endothermicarrow_forwardWhen tin comes into contact with oxygen in the air, tin (IV) oxide, SnO2 is formed. Sn (s) + O2 (g) SnO2 (s) A piece of tin foil, 8.25 cm x 21.5 cm x 0.600 mm (d = 7.28 g / cm), exposed to oxygen. (A) Assuming the reaction of all tin, what is the mass of the oxidized tin foil? (B) Air is about 21% oxygen by volume (d = 1.309 g / L at 25 ° C, 1 atm). How many liters of air is required to fully react with tin foil?arrow_forward(a) Atoms are very small compared to objects on the macroscopic scale. The radius of a nickel atom is 125 pm. What is this value in meters and in centimeters? cm -23 (b) The mass of a single nickel atom is 9.75×10 g. Suppose enough Ni atoms were lined up like beads on a string to span a distance of 31.3 cm (12 inches). How many atoms would be required? atoms What mass in grams of Ni would be used? Could you weigh out this amount of nickel using a typical laboratory balance? (c) Taking the density of nickel metal to be 8.91 g/cm, calculate the mass of metal needed to form a piece of Ni 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 = nr h) How many nickel atoms does this represent? atomsarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY

Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning

Chemistry
Chemistry
ISBN:9781259911156
Author:Raymond Chang Dr., Jason Overby Professor
Publisher:McGraw-Hill Education

Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning

Organic Chemistry
Chemistry
ISBN:9780078021558
Author:Janice Gorzynski Smith Dr.
Publisher:McGraw-Hill Education

Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning

Elementary Principles of Chemical Processes, Bind...
Chemistry
ISBN:9781118431221
Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:WILEY