Podcast
Questions and Answers
A ______ is a mixture that is so mixed together it looks like a pure substance.
A ______ is a mixture that is so mixed together it looks like a pure substance.
solution
[Blank] is when you remove a solid from a liquid by passing it through a device that allows the smaller particles through
[Blank] is when you remove a solid from a liquid by passing it through a device that allows the smaller particles through
Filtering
[Blank] can be used to separate a mechanical mixture if one of the substances in the mixture is attracted to a magnet.
[Blank] can be used to separate a mechanical mixture if one of the substances in the mixture is attracted to a magnet.
Magnetism
A ______ is the liquid that dissolves a solid.
A ______ is the liquid that dissolves a solid.
Signup and view all the answers
A solution is ______ with a solute when no more of the solute can be dissolved in it.
A solution is ______ with a solute when no more of the solute can be dissolved in it.
Signup and view all the answers
Matter is split into two different groups: pure substances and ______.
Matter is split into two different groups: pure substances and ______.
Signup and view all the answers
A pure substance is made from one ______.
A pure substance is made from one ______.
Signup and view all the answers
Elements are pure substances that cannot be broken down into another pure ______.
Elements are pure substances that cannot be broken down into another pure ______.
Signup and view all the answers
[Blank] are made from more than one element.
[Blank] are made from more than one element.
Signup and view all the answers
Most substances you use are ______.
Most substances you use are ______.
Signup and view all the answers
[Blank] mixtures have two or more substances that can be seen with the unaided eye.
[Blank] mixtures have two or more substances that can be seen with the unaided eye.
Signup and view all the answers
A ______ is a cloudy mixture in which clumps of solid and/or liquid are scattered across a liquid or gas.
A ______ is a cloudy mixture in which clumps of solid and/or liquid are scattered across a liquid or gas.
Signup and view all the answers
An ______ is a special type of suspension which keeps it from separating.
An ______ is a special type of suspension which keeps it from separating.
Signup and view all the answers
Study Notes
Chapter 6.1: Matter
- Matter is categorized into pure substances and mixtures.
- A pure substance is made of only one type of particle.
- Diamonds are a natural example of a pure substance.
- Sugar and aluminum foil are examples of human-made pure substances.
- Mixtures are made of two or more pure substances.
- Mixtures can contain solids, liquids, or gases.
- Mixtures do not have a uniform composition.
- Bread and soft drinks are examples of mixtures.
Chapter 6.2: Pure Substances
- Pure substances are further divided into elements and compounds.
- Elements cannot be broken down into simpler substances.
- The periodic table contains 118 known elements.
- Examples of common elements include oxygen, iron, and aluminum.
- Krypton is a less common element.
- Compounds are formed from two or more elements.
- Compounds can exist as solids, liquids, or gases.
- Examples of compounds include water, table salt, carbon dioxide, sugar, and alcohol.
- Hydrogen and Oxygen are compound elements
- Sodium and Chlorine are compound elements
- Carbon and Oxygen are compound elements
- Carbon, hydrogen, and oxygen are elements that compose compounds
Chapter 6.3: Types of Mixtures
- Most substances used are mixtures.
- Common types of mixtures include mechanical mixtures, suspensions, emulsions, and solutions.
- Granola cereal and other visible mixtures are mechanical mixtures.
- Tomato juice is a suspension.
- Milk is an emulsion.
- Apple juice is a solution.
Chapter 6.4: Separating Mixtures
- Mixtures can be separated using various methods.
- Picking apart is used for easily distinguishable components.
- Filtering separates solids from liquids.
- Density differences allow for separation.
- Magnetism can separate magnetic substances.
- Dissolving allows for separation if a component is soluble in a specific liquid.
- Evaporating removes a liquid component, leaving behind the solid.
Chapter 6.6: Solutions
- A solvent dissolves a solute, forming a solution.
- The liquid is the solvent; the solid being dissolved is the solute.
- Concentration measures the amount of solute in a solution.
- Dilute solutions have a low concentration, concentrated solutions have a high concentration.
- A saturated solution contains the maximum amount of solute at a given temperature.
- A supersaturated solution holds more solute than a saturated one.
Chapter 6.8: Acids and Bases
- Acids have sour tastes, corrode metals, and can cause skin burns.
- Lemon juice and vinegar are examples of acids.
- Bases have bitter tastes, are slippery, and can react with fats and oils.
- Examples include baking soda, and milk of magnesia.
- Litmus paper can indicate if a solution is acidic or basic.
Chapter 6.9: Measuring Acidity: pH Scale.
- The pH scale measures the acidity of a solution.
- The scale ranges from 0 to 14.
- Acidic solutions have a pH lower than 7.
- Basic solutions have a pH higher than 7.
- Neutral solutions (like water) have a pH of 7.
- Litmus paper helps determine whether solutions are acidic or basic.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Explore the fascinating world of matter in Chapter 6. Learn the distinctions between pure substances, which are made of one type of particle, and mixtures, which combine different substances. Discover how elements and compounds form the foundation of pure substances and see practical examples from everyday life.
