Mixtures And Solutions Post-test Barber
Mixtures and solutions pre-test
Questions and Answers
- 1.
The process of a material becoming incorporated uniformly into another or mixing together evenly.
- A.
Catalyst
- B.
Dissolving
- C.
Element
- D.
Solution
Correct Answer
B. DissolvingExplanation
Dissolving is the process of a material (solute) becoming uniformly incorporated into another substance (solvent), resulting in a homogeneous mixture called a solution. This occurs when the solute particles break apart and disperse throughout the solvent, forming individual solute particles that are evenly distributed. The process of dissolving is often facilitated by a catalyst, which speeds up the dissolution process. Elements, on the other hand, are pure substances that cannot dissolve in other substances. Therefore, the correct answer is dissolving.Rate this question:
-
- 2.
To turn into gas, like water into water vapor
- A.
Ferment
- B.
Molecule
- C.
Evaporate
- D.
Product
Correct Answer
C. EvaporateExplanation
Evaporate is the correct answer because it means the process of turning a liquid into a gas, just like water turning into water vapor. This process occurs when the liquid's molecules gain enough energy to break free from their bonds and escape into the air as a gas. Ferment refers to a chemical process involving the breakdown of organic substances, molecule is a term for the smallest unit of a chemical compound, and product refers to the result or outcome of a chemical reaction.Rate this question:
-
- 3.
A gradual chemical change that takes place without oxygen, caused by organisms such as bacteria or yeast.
- A.
Fermenting
- B.
Saturate
- C.
Mixture
- D.
Element
Correct Answer
A. FermentingExplanation
Fermenting is a process in which a gradual chemical change occurs without the presence of oxygen. This process is caused by organisms like bacteria or yeast. During fermentation, these organisms break down sugars or other organic compounds, resulting in the production of alcohol, acids, or gases. This process is commonly used in the production of alcoholic beverages, bread, and yogurt.Rate this question:
-
- 4.
The chemical processes that take place in a living cell or organism.
- A.
Chemical
- B.
Reactant
- C.
Solution
- D.
Metabolism
Correct Answer
D. MetabolismExplanation
Metabolism refers to the chemical processes that occur within a living cell or organism. It involves the conversion of reactants into products, which can include the breakdown of molecules for energy or the synthesis of new molecules for growth and repair. Metabolism is essential for maintaining the proper functioning of cells and organisms, as it provides the necessary energy and building blocks for various biological processes.Rate this question:
-
- 5.
A substance containing two or more materials with different properties.
- A.
Mixture
- B.
Alloy
- C.
Crystal
- D.
Concentration
Correct Answer
A. MixtureExplanation
A mixture is a substance that contains two or more materials with different properties. In a mixture, the different materials are not chemically combined and can be separated physically. This is different from an alloy, which is a mixture of metals, and a crystal, which is a solid with a repeating pattern. Concentration refers to the amount of a substance present in a given volume or area.Rate this question:
-
- 6.
An arrangement of the elements that provides information about their properties.
- A.
Product
- B.
Precipitate
- C.
Citric
- D.
Periodic table
Correct Answer
D. Periodic tableExplanation
The periodic table is an arrangement of the elements that provides information about their properties. It organizes the elements based on their atomic number, electron configuration, and recurring chemical properties. The table displays the elements in rows called periods and columns called groups. Each element is represented by its symbol, atomic number, and atomic mass. The periodic table is a valuable tool for scientists and chemists as it allows them to easily identify and understand the properties and trends of different elements.Rate this question:
-
- 7.
A solid material that forms during a chemical reaction.
- A.
Ferment
- B.
Precipitate
- C.
Solute
- D.
Alloy
Correct Answer
B. PrecipitateExplanation
A precipitate is a solid material that forms during a chemical reaction. When two or more substances react, they may form a new solid substance that is insoluble in the reaction mixture. This solid substance is known as a precipitate. It is often observed as a cloudy or solid layer that settles at the bottom of the reaction container. Precipitates can be formed through various chemical reactions, such as precipitation reactions, where two aqueous solutions react to form an insoluble product.Rate this question:
-
- 8.
A characteristic of an object that can be observed, such as size, color, shape, or texture.
- A.
Synthetic
- B.
Evaporate
- C.
Property
- D.
Mixture
Correct Answer
C. PropertyExplanation
A property is a characteristic of an object that can be observed, such as its size, color, shape, or texture. It is a defining feature of the object that helps to distinguish it from others. In this context, the term "property" is the most appropriate choice as it aligns with the description provided. The other options, synthetic, evaporate, and mixture, do not fit the definition of a characteristic that can be observed.Rate this question:
-
- 9.
A solution in which as much solute as possible has been dissolved.
- A.
Atom
- B.
Ingot
- C.
Dissolve
- D.
Saturated solution
Correct Answer
D. Saturated solutionExplanation
A saturated solution refers to a solution in which the maximum amount of solute has been dissolved in a solvent at a given temperature. The solution is in a state of equilibrium, where the rate of dissolution of the solute is equal to the rate of precipitation. Any additional solute added to the solution will not dissolve and will remain as a solid at the bottom. Therefore, a saturated solution contains the maximum concentration of solute that can be dissolved under the given conditions.Rate this question:
-
- 10.
Capable of being dissolved.
- A.
Mixture
- B.
Soluble
- C.
Compound
- D.
Solution
Correct Answer
B. SolubleExplanation
Soluble means capable of being dissolved. In the context of the given options, "soluble" is the correct answer as it directly relates to the ability of a substance to dissolve in a solvent. A soluble substance can form a solution when mixed with a solvent, unlike a compound which is a substance formed by the chemical combination of two or more elements. A mixture is a combination of substances that can be physically separated. Therefore, "soluble" is the most appropriate term to describe the property of being able to dissolve.Rate this question:
-
- 11.
A special mixture formed when one or more materials dissolves in another.
- A.
Solution
- B.
Molecule
- C.
Atom
- D.
Vulcanize
Correct Answer
A. SolutionExplanation
A solution is a special mixture that is formed when one or more materials dissolve in another. In a solution, the dissolved substances become evenly distributed throughout the solvent, resulting in a homogeneous mixture. This process occurs at the molecular level, where the molecules of the solute are surrounded by the molecules of the solvent. Solutions can be formed with various combinations of substances, and they play a crucial role in many chemical and biological processes.Rate this question:
-
- 12.
The process of treating rubber chemically in order to give it useful properties such as strength and temperature stability.
- A.
Dissolve
- B.
Solution
- C.
Compound
- D.
Vulcanization
Correct Answer
D. VulcanizationExplanation
Vulcanization is the process of treating rubber chemically to enhance its properties like strength and temperature stability. This process involves adding sulfur or other chemicals to the rubber and heating it, which causes cross-linking of polymer chains. This cross-linking improves the rubber's durability, elasticity, and resistance to heat, chemicals, and aging. Vulcanization is a crucial step in the production of various rubber products, including tires, hoses, and seals.Rate this question:
-
- 13.
The smallest particle of an element.
- A.
Chemistry
- B.
Solvent
- C.
Crystal
- D.
Atom
Correct Answer
D. AtomExplanation
An atom is the smallest particle of an element. It is the basic unit of matter that retains the chemical properties of that element. Atoms are composed of protons, neutrons, and electrons. They combine to form molecules and compounds. In the context of chemistry, atoms are fundamental to understanding the behavior and interactions of substances.Rate this question:
-
- 14.
The attachment between two atoms in a molecule.
- A.
Chemical bond
- B.
Reaction
- C.
Ferment
- D.
Alloy
Correct Answer
A. Chemical bondExplanation
A chemical bond refers to the attachment between two atoms in a molecule. It is the force of attraction that holds the atoms together and is formed when atoms share or transfer electrons. This bond is responsible for the stability and structure of molecules, determining their physical and chemical properties. Chemical bonds can be covalent, where electrons are shared between atoms, or ionic, where electrons are transferred from one atom to another. The term "chemical bond" accurately describes this attachment between atoms in a molecule.Rate this question:
-
- 15.
A person trained in chemistry.
- A.
Concentration
- B.
Evaporate
- C.
Chemist
- D.
Solute
Correct Answer
C. ChemistExplanation
The correct answer is "chemist". A chemist is a person who is trained in chemistry, which is the study of matter and its properties, composition, and behavior. Chemists often work in laboratories and are knowledgeable about various chemical reactions, compounds, and elements. They use their expertise to analyze and interpret data, develop new substances, and solve problems related to chemicals. Therefore, a person trained in chemistry is commonly referred to as a chemist.Rate this question:
-
- 16.
A substance made of two or more elements that are chemically combined.
- A.
Change
- B.
Bond
- C.
Compound
- D.
Acid
Correct Answer
C. CompoundExplanation
A compound is a substance that is formed when two or more elements chemically combine. In a compound, the elements are bonded together in a specific ratio and arrangement. This bonding results in the formation of a new substance with different properties than the individual elements. Compounds can be found in various forms such as molecules, crystals, or ions. They can have specific chemical and physical properties, and their formation involves a chemical reaction.Rate this question:
-
- 17.
The relative amount of a substance in a mixture.
- A.
Volume
- B.
Concentration
- C.
Product
- D.
Ingot
Correct Answer
B. ConcentrationExplanation
Concentration refers to the relative amount of a substance in a mixture. It is a measure of how much solute is dissolved in a solvent. The concentration can be expressed in various units such as moles per liter, grams per liter, or percentage. It is an important concept in chemistry and is used to describe the strength or dilution of a solution.Rate this question:
-
- 18.
The ratio of the mass of a material in proportion to its volume.
- A.
Element
- B.
Mixture
- C.
Compound
- D.
Density
Correct Answer
D. DensityExplanation
Density is the correct answer because it refers to the ratio of the mass of a material to its volume. It is a physical property that helps determine how tightly packed the particles of a substance are. Density is calculated by dividing the mass of an object by its volume, and it is often used to identify and classify different materials.Rate this question:
-
- 19.
To make a solution less concentrated, usually by adding more liquid.
- A.
Density
- B.
Precipitate
- C.
Vulcanization
- D.
Dilute
Correct Answer
D. DiluteExplanation
Dilution is the process of making a solution less concentrated by adding more liquid. This is achieved by adding a solvent to the solution, which reduces the concentration of the solute. The resulting solution has a lower density and is less concentrated than the original solution. Dilution is commonly used in various fields, such as chemistry, medicine, and cooking, to adjust the concentration of a solution to a desired level.Rate this question:
-
- 20.
The solid form of a material that can be identified by its natural shape or pattern.
- A.
Crystal
- B.
Base
- C.
Acid
- D.
Alloy
Correct Answer
A. CrystalExplanation
A crystal is the solid form of a material that has a specific repeating pattern or structure. This natural shape or pattern is unique to each type of crystal and can be used to identify the material. Crystals can be found in various substances such as minerals, gemstones, and even certain types of glass. They are known for their geometric shapes and clarity, and they often have distinct physical properties such as transparency and hardness.Rate this question:
-
Quiz Review Timeline +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
-
Current Version
-
Feb 14, 2023Quiz Edited by
ProProfs Editorial Team -
Mar 18, 2013Quiz Created by
Sbandres
Back to top