Concept explainers
(a)
Interpretation:
Chemical formula for compound, table sugar has to be written.
Concept Introduction:
The composition of a chemical compound can be presented in a very precise was with the use of chemical formula. Chemical formula uses
(b)
Interpretation:
Chemical formula for compound, caffeine has to be written.
Concept Introduction:
The composition of a chemical compound can be presented in a very precise was with the use of chemical formula. Chemical formula uses chemical symbols of the elements that is present in the compound and numerical subscripts that represent how many number of atoms of each element is present in the compound.
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Chapter 1 Solutions
General, Organic, and Biological Chemistry
- (For Exercises 4546) Solutions containing nickel(II) ion are usually bright green in color. When potassium hydroxide is added to such a nickel(II) solution, a pale-green fluffy solid forms and settles out of the solution. The fact that a reaction takes place when potassium hydroxide is added to a solution of nickel(II) ions is an example of a properly. . The fact that a solution of nickel(II) ion is bright green is an example of a property.arrow_forwardIn 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.arrow_forward3.83 For the reaction of nitrogen, N2, and hydrogen, H2, to form ammonia, NH3, a student is attempting to draw a particulate diagram, as shown below. Did the student draw a correct representation of the reaction? If not, what was the error the student made?arrow_forward
- 2. Carbon dioxide (CO2) forms when coal burns in the presence of oxygen. Which of the following is the BEST evidence that a chemical reaction occurs when the coal burns? a. Production of mechanical energy c. A new substance is produced b. Production of electricity d. Formation of precipitate 3.Which of these does NOT happen during a chemical change? a. New substances are formed with different chemical properties. b. Attractive force between atoms of molecule formed or break. c. The chemical properties of the substances before and after the reaction are the same d. Energy is always released or absorbed. 4. A granular substance is added to a liquid. Which of the following would supply evidence to propose a chemical change has taken place? a. The granules dissolve completely. c. The volume of the liquid increases. b. The liquid gives off heat. d. The granules become smaller. 5. Which of the following does NOT indicate a chemical change is occurring? a.…arrow_forwardA student measures the mass of a sample of a metallic element, M. Then the student heats the sample in air, where it completely reacts to form the compound MO. The student measures the mass of the compound that was formed. Which of the following questions can be answered from the results of the experiment? A What is the density of M? B What is the molar mass of M? What is the melting point of M? What is the melting point of MO?arrow_forward• 20 grams of nitrogen reacted with 2.5 moles of hydrogen to form ammonia (NH3) gas. What is the number of moles of nitrogen. N2+ 3 H2 -------- > 2NH3 Answer should be rounded to 2 decimal places with the unit -MOLES.arrow_forward
- 7. A metal (M) forms a compound with the formula Mla. The compound contains 71.00% I by mass. Identify the metal in the compound by name. 8. A sunscreen preparation contains 2.50% benzyl salicylate by mass. If a tube contains 4.0 oz of sunscreen, how many tubes of sunscreen can be made if you have 2.03 lb benzyl salicylate?arrow_forwardWhich law would you use to compare CO and CO2 ? Explain. Without doing any calculations, determine which of the two compounds has the highest percent by mass of oxygen in the compound.arrow_forwardDichloromethane CH2Cl2 (given density=1.33g/mL) volume: 21.0mL Find the Moles, molecules, and total atoms in CH2Cl2.arrow_forward
- Which mixture can be separated into its components by adding water then filtration? a. Potassium carbonate and sodium carbonate b. Silver nitrate and potassium iodide c. Barium sulphate and magnesium sulphate d. Silver bromide and silver sulphitearrow_forward5.) Correctly match the terms listed on the left with the substances listed on the right. More than one term may be used for each substance. A. element B. compound C. heterogeneous Mg Fe mixed with sand saltwater D. mixture water E. homogeneous F. pure substance G. Solution M9SO. 41 8 3. 5 COarrow_forwardGaseous methane (CH4) will react with gaseous oxygen (O₂) to produce gaseous carbon dioxide (CO₂) and gaseous water (H₂O). Suppose 8.8 g of methane is mixed with 22.5 g of oxygen. Calculate the maximum mass of water that could be produced by the chemical reaction. Round your answer to 3 significant digits. D X 3 ? B Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility P DII F10 Explanation Check 38² 80 888 F4 FS MacBook Air Fo J olarrow_forward
- Chemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub CoGeneral Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage Learning
- Introductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage Learning