Classify the six underlined properties in the following paragraph as chemical or physical: Isopropyl alcohol is a clear colorless liquid with a characteristic vinous odor and pungent taste used in many hand sanitizers to kill germs. It melts at −89 °C and boils at 82.6 °C.Isopropyl alcohol burns in oxygen with a deceptive blue flame. If ingested in excess, it can be oxidized in our body cells to produce acids that lower our blood pH. Isopropyl alcohol kills germs by denaturing their proteins and make their cell wall more water soluble

Classify the six underlined properties in the following paragraph as chemical or physical: Isopropyl alcohol is a clear colorless liquid with a characteristic vinous odor and pungent taste used in many hand sanitizers to kill germs. It melts at −89 °C and boils at 82.6 °C.Isopropyl alcohol burns in oxygen with a deceptive blue flame. If ingested in excess, it can be oxidized in our body cells to produce acids that lower our blood pH. Isopropyl alcohol kills germs by denaturing their proteins and make their cell wall more water soluble

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter1: The Nature Of Chemistry

Section: Chapter Questions

Problem 32QRT: In each case, describe the change as a chemical or physical change. Give a reason for your...

See similar textbooks

Similar questions

Classify each of the following properties of the metal magnesium as a physical property or a chemical property. a. Silvery-white in color b. Does not react with cold water c. Melts at 651C d. Finely divided form burns in oxygen with a dazzling white flame
Indicate whether each of the following statements is true or false. a. Both elements and compounds are pure substances. b. A compound results from the physical combination of two or more elements. c. In order for matter to be heterogeneous, at least two compounds must be present. d. Compounds, but not elements, can have a variable composition.
In each case, describe the change as a chemical or physical change. Give a reason for your choice. Salt dissolves when you add it to water. Food is digested and metabolized in your body. Crystalline sugar is ground into a fine powder. When potassium is added to water there is a purplishpink flame and the water becomes basic (alkaline).
Classify each of the following properties of the metal magnesium as a physical property or a chemical property. a. Solid at room temperature b. Ignites upon heating in air c. Hydrogen gas is produced when it is dissolved in acids d. Has a density of 1.738 g/cm3 at 20C
Indicate whether each of the following statements is true or false. a. Compounds can be separated into their constituent elements by chemical means. b. Elements can be separated into their constituent compounds by physical means. c. A compound must contain at least two elements. d. A compound is a physical mixture of different elements.
Soft wood chips weighing 17.2 kg are placed in an iron vessel and mixed with 150.1 kg water and 22.43 kg sodium hydroxide. A steel lid seals the vessel, which is then placed in an oven at 250°C for 6 hours. Much of the wood fiber decomposes under these conditions; the vessel and lid do not react.(a) Classify each of the materials mentioned as a substance or mixture. Subclassify the substances as elements or compounds.(b) Determine the mass of the contents of the iron vesselafter the reaction.
Which of the following processes require(s) chemical methods? Separating a heterogeneous mixture into pure substances. Distilling a saltwater mixture. Separating a homogeneous mixture into pure substances. Breaking a compound into its constituents elements.
Which of the following represents a chemical property of hydrogen gas? O It reacts explosively with oxygen. O It is colorless.O It is tastelessO It is less dense than air.O It is gaseous at room temperature.
Write the balanced chemical equation for the neutralization reaction that occurs when an aqueous solution of hydrobromic acid (HBr) is mixed with an aqueous solution of lithium hydroxide (LIOH). Indicate the physical states of the reactants and products using the abbreviations (s), (1), (g), or (aq) for solids, liquids, gases, or aqueous solutions, respectively. Express your answer as a chemical equation. • View Available Hint(s) ΑΣφ ?
-1 A geochemist measures the concentration of salt dissolved in Lake Parsons and finds a concentration of 9.0 g·L The geochemist also measures the concentration of salt in several nearby non-isolated lakes, and finds an average concentration of 5.3 g·L *. Assuming the salt concentration in Lake Parsons before it became isolated was equal to the average salt concentration in nearby non-isolated lakes, calculate the percentage of Lake Parsons which has evaporated since it became isolated. Be sure your answer has the correct number of significant digits. x10
-1 A geochemist measures the concentration of salt dissolved in Lake Parsons and finds a concentration of 4.27 g·L *. The geochemist also measures the concentration of salt in several nearby non-isolated lakes, and finds an average concentration of 2.6 g-L. Assuming the salt concentration in Lake Parsons before it became isolated was equal to the average salt concentration in nearby non-isolated lakes, calculate the percentage of Lake Parsons which has evaporated since it became isolated. Be sure your answer has the correct number of significant digits.
Mixture is a combination of two or more substances that are not chemically combined. The substances are formed together but no new substance is formed. A mixture can be of any form. It may be solid, liquid or in gaseous form. Mixtures can be classified according to their appearance. Uniform mixtures or Homogenous Mixtures have substances that cannot be recognized because solutes completely dissolve in the solvent while Nonuniform or heterogeneous mixtures have components which can be identified easily. EXPERIMENT: Forming Mixtures A. Materials: Three glasses, water, teaspoon, flour, food color/soy sauce, cooking oil, pebbles/small stones B. Procedure: 1. Half-fill the four glasses with water. 2. Put the food color/soy sauce in one glass. Stir. Label it as "Set A. 3. Put a teaspoon of flour in the second glass. Stir. Label it as "Set B". 4. Put a teaspoon of cooking oil in the third glass. Stir. Label it as "Set C". 5. Put the pebbles/small stones and the flour in a plate or petri dish…