Matter

Classify each of the following as a pure substance or a mixture.
If a mixture, indicate whether it is homogeneous or
heterogeneous: (c) aluminium

A solid white substance A is heated strongly in the absence of
air. It decomposes to form a new white substance B and a gas C.
The gas has exactly the same properties as the product obtained
when carbon is burned in an excess of oxygen. Based
on these observations, can we determine whether solids A
and B and gas C are elements or compounds?

Classify each of the following as an element, compound or mixture.a) Ammonia, NH3b) Gold barc) Orange juiced) Winee) Saline solution

Compounds can only be broken down by chemical means.

Milk is an example of a homogeneous mixture.

Concrete is an example of a homogeneous mixture.

Which of the following statements is true?

Classify each of the following as a pure substance, a solution, 
or a heterogeneous mixture: (b) a 999 gold bar

Choose the homogeneous mixture from the list below.

Types of Matter: Elements, Compounds, and Mixtures

Classification of Matter

Judge the following statements as true or false. If you believe
a statement to be false, provide a corrected version.
(b) All mixtures contain at least one element and one
compound.

Judge the following statements as true or false. If you believe
a statement to be false, provide a corrected version.
(i) Compounds always contain at least two different elements.

3 States of Matter for Kids (Solid, Liquid, Gas): Science for Children - FreeSchool

Classify each of the following as a pure substance or a mixture.
If a mixture, indicate whether it is homogeneous or
heterogeneous: (d) iodine tincture.

Judge the following statements as true or false. If you believe
a statement to be false, provide a corrected version.
(a) Air and water are both elements.

Classify each of the following as a pure substance or a mixture.
If a mixture, indicate whether it is homogeneous or heterogeneous:
(a) milk

Classify each of the following as a pure substance or a mixture. 
If a mixture, indicate whether it is homogeneous or heterogeneous: 
(b) beer

Classify each of the following as a pure substance or a mixture. 
If a mixture, indicate whether it is homogeneous or heterogeneous: 
(d) mayonnaise.

Which of the following would you characterize as pure 
or nearly pure substance? (a) stomach acid; (b) dry ice; 
(c) ice-cream; (d) stainless steel; (e) petroleum; (f) distilled 
water; (g) carbon monoxide gas; (h) compressed air in 
balloon.

Pure Substances, Elements, Compounds, Homogenous & Heterogenous Mixture Examples and Problems

Classification of Matter Example 1

Changes of State

Judge the following statements as true or false. If you believe
a statement to be false, provide a corrected version.
(c) Compounds can be decomposed into two or more other
substances; elements cannot.

Classify each of the following as a pure substance, a solution, 
or a heterogeneous mixture: (c) stainless steel.

 As the mass of carbon dioxide used increases so does the mass of oxygen. 

 Examine other choices for consistency with the data. 

 As the mass of carbon dioxide used increases so does the mass of carbon. 

 The sum of the masses of carbon and oxygen equals the mass of carbon dioxide used. 

 The mass of oxygen is about 2.67 times that of carbon in all samples. 

 All these statements correctly apply to the given data. 

 Look for patterns in the masses both in terms of magnitude as well as the total masses involved. 

Consider the following data obtained by decomposing samples of carbon dioxide, CO2, into its component elements. <table><caption>Mass of CO2 and Components</caption><tbody><tr><th scope="col">Sample</th><th scope="col">Mass CO2</th><th scope="col">Mass C</th><th scope="col">Mass O2</th></tr><tr><th scope="row">1</th><td>44.00 g</td><td>12.00 g</td><td>32.00 g</td></tr><tr><th scope="row">2</th><td>22.00 g</td><td>6.00 g</td><td>16.00 g</td></tr><tr><th scope="row">3</th><td>88.00 g</td><td>24.00 g</td><td>64.00 g</td></tr></tbody></table> Which of the following statements is consistent with this data?

Classify each substance as a pure substance or a mixture. If it is
a pure substance, classify it as an element or a compound. If it
is a mixture, classify it as homogeneous or heterogeneous.
a. sweat
b. carbon dioxide
c. aluminum
d. vegetable soup

CLASSIFICATION OF MATTER | Animation

Classification of matter | Element, compound, homogeneous mixture, heterogeneous mixture - Dr K

Classify each substance as a pure substance or a mixture. If it is
a pure substance, classify it as an element or a compound. If it
is a mixture, classify it as homogeneous or heterogeneous.
a. wine
b. beef stew
c. iron
d. carbon monoxide

Classifying Matter With Practice Problems | Study Chemistry With Us

Pure Substances and Mixtures! (Classification of Matter)

Classify each of the following as a pure substance or a mixture. 
If a mixture, indicate whether it is homogeneous or heterogeneous: 
(c) diamond

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Conquer Chemistry

1. Intro to General Chemistry

2. Atoms & Elements

3. Chemical Reactions

4. BONUS: Lab Techniques and Procedures

5. BONUS: Mathematical Operations and Functions

6. Chemical Quantities & Aqueous Reactions

7. Gases

8. Thermochemistry

9. Quantum Mechanics

10. Periodic Properties of the Elements

11. Bonding & Molecular Structure

12. Molecular Shapes & Valence Bond Theory

13. Liquids, Solids & Intermolecular Forces

14. Solutions

15. Chemical Kinetics

16. Chemical Equilibrium

17. Acid and Base Equilibrium

18. Aqueous Equilibrium

19. Chemical Thermodynamics

20. Electrochemistry

21. Nuclear Chemistry

22. Organic Chemistry

23. Chemistry of the Nonmetals

24. Transition Metals and Coordination Compounds

[BOOK CHEM] Clutch Version

SI Units

The International System of Units (SI) is related to the metric system and is based on seven base units.

Physical & Chemical Changes

A physical change involves a change in the phases of matter, whereas a chemical change involves a change in chemical bonds.&nbsp;

Physical Properties

Physical Properties are measurable properties that describe the state of chemical compounds.&nbsp;

Significant Figures: In Calculations

Significant Figures are often involved in chemical calculations.&nbsp;

Scientific Notation

Scientific Notation is used to turn small or large inconvenient numbers into manageable ones.&nbsp;

Density of Non-Geometric Objects

The density of non-geometric objects can be determined using water displacement.&nbsp;

Density

Density represents the mass of an object or compound within a given volume.&nbsp;

Significant Figures: Precision in Measurements

Significant Figures are used to discuss the level of precision in any measurement.&nbsp;

Intensive vs. Extensive Properties

Intensive Properties are independent and Extensive Properties are dependent on the size or amount of substance present

Density of Geometric Objects

The density of geometric objects generally includes spheres, cubes and cylinders.&nbsp;

Significant Figures

Significant Figures are used to determine some level of accuracy within our recorded measurements.&nbsp;

Dimensional Analysis

We use dimensional analysis&nbsp;as a fail proof process to convert from one unit to another.

Chemical Properties

Chemical Properties are observed during chemical reactions.&nbsp;

Temperature

Temperature is a measure of the amount of average kinetic energy of the atoms in a compound.

Metric Prefixes

Metric Prefixes are “labels” that can be placed in front of base units.&nbsp;

Conversion Factors

Conversion Factors represent ratios or fractions composed of different units.&nbsp;

Chemistry is the study of matter and the changes it undergoes, with the atom being its basic functional unit.&nbsp;