a.
To determine:
If cream, sugar, and flavorings are mixed and frozen to make ice cream is a physical change or a
Concept introduction:
Physical change is defined as that change in which the chemical composition of the substance does not change. In physical change one form of a substance is changed to another form, no new product is formed.
Examples of physical change are condensation, melting and freezing.
A chemical change is defined as that change in which the chemical composition of the substance changes. In a chemical reaction, the formation of a new product takes place.
Examples of a chemical reaction are rusting of iron and formation of a precipitate.
b.
To determine:
If milk spoils and becomes sour is a physical change or a chemical reaction.
Concept introduction:
Physical change is defined as that change in which the chemical composition of the substance does not change. In physical change one form of a substance is changed to another form, no new product is formed.
Examples of physical change are condensation, melting and freezing.
A chemical change is defined as that change in which the chemical composition of the substance changes. In a chemical reaction, the formation of a new product takes place.
Examples of a chemical reaction are rusting of iron and formation of a precipitate.
c.
To determine:
If a puddle of spilled nail polish remover disappears is a physical change or a chemical reaction.
Concept introduction:
Physical change is defined as that change in which the chemical composition of the substance does not change. In physical change one form of a substance is changed to another form, no new product is formed.
Examples of physical change are condensation, melting and freezing.
A chemical change is defined as that change in which the chemical composition of the substance changes. In a chemical reaction, the formation of a new product takes place.
Examples of a chemical reaction are rusting of iron and formation of a precipitate.
Want to see the full answer?
Check out a sample textbook solutionChapter 1 Solutions
General, Organic, and Biological Chemistry (3rd Edition)
- 6. When Mr. Calvo heated up the water, the sugar dissolved Name: Date: Class: Pages: 149 to 157 5. To make a solution, particles from one substance so that you cannot see them. into another substance A. dissolves B. drags C. rubs D. condenses A. slower B. faster C. without any change D. into salt 7. A begins and ends with the same kind of matter. A. chemical change B. physical change D. solute C. solvent 8. A begins with one kind of matter and ends with another. B. chemical change B. physical change C. solvent D. solute . when a substance goes through a chemical change, it forms a new substance that has different physical and chemical properties. Chemical changes are often caused by changes in temperature. Which of the following is an example of a chemical change caused by a change in temperature? А. burning wood in a fire melting ice cream С. В. freezing a popsicle boiling water D. 10.Iron becomes rust when it reacts with oxygen. Which of the following is another example o material…arrow_forward14. A researcher finds that a solid has high melting and boiling points, and is soluble in water. Based on this information, he(she) can believe that the substance is a(n) A. ionic compound B. molecular compound C. homogeneous mixture D. heterogeneous mixture E. flammable substancearrow_forwardLabel each of the following as either a physical change ora chemical reaction:a. A puddle of water evaporates.b. Food is digested.c. Wood is burned.arrow_forward
- 7. A student combines pure NaCl (sodium chloride) with pure DI water. The resulting is an example of: a. homogeneous mixture b. heterogeneous mixture c. pure substance d. suspensionarrow_forwardWhich statement is true about the particles of a solid when the solid changes into a liquid? A. They stop vibrating. B. Their kinetic energy increases. C. They move closer to each other. D. The attractive force between them increasesarrow_forwardIndicate whether the following sample of matter is a heterogeneous mixture, a homogeneous mixture, a compound, or an element. 4. a colorless gas that cannot be separated into simpler substances using physical means and that reacts with the metal a. heterogeneous mixture b. element c. compound d. homogeneous mixturearrow_forward
- 1. Metal Ore a. element b.compound c. mixture 2. Grinding dried leaves into a fine powder a.chemical change b. physical changearrow_forwardWhich one of the processes listed below describes (rather than physical) change? a. Fat is metabolized by the body to make energy b. Water evaporates from the surface of the skin. c. Frozen lemonade is reconstituted by adding water to it. d. Kool-aid is made by adding a dry powder to water Explain the answerarrow_forwardA physical change occurs when a a. silver bowl tarnishes. b. glue gun melts a glue stick. c. peach spoils. d. bracelet turns your wrist green.arrow_forward
- Classify each of the following as a physical or chemical change:a. A gold ingot is hammered to form gold leaf.b. Gasoline burns in air.c. Garlic is chopped into small pieces.arrow_forwardWhat is a mixture? A. A solid gold ring B. Nitrogen and oxygen in a molecule C. Copper and lead reacting chemicallyarrow_forward1. Iron metal rusts in an atmosphere of moist air. a. Physical Propertyb. Chemical Property 2. Mercury metal is a liquid at room temperature.a. Physical Propertyb. Chemical Property3. Silver salts discolor the skin by reacting with skin protein.a. Physical Propertyb. Chemical Property4. Nickel metal dissolves in acid to produce a light green solutiona. Physical Propertyb. Chemical Property 5. Potassium metal has a melting point of 63°C.a. Physical Propertyb. Chemical Property6. Titanium metal can be drawn into thin wires.a. Physical Propertyb. Chemical Property7. Silver metal shows no sign of reaction when placed in hydrochloric acid.a. Physical Propertyb. Chemical Property8. Copper metal possesses a reddish-brown color.a. Physical Propertyb. Chemical Property9. Beryllium metal, when inhaled in a finely divided form, can produce serious lung disease.a. Physical Propertyb. Chemical Propertyarrow_forward
- World of Chemistry, 3rd editionChemistryISBN:9781133109655Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCostePublisher:Brooks / Cole / Cengage Learning