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1. Intro to General Chemistry

Classification of Matter

1. Intro to General Chemistry

Classification of Matter

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Introduction to Chemistry Channel

Introduction to Chemistry Channel

Classification of Matter

Classification of Matter

Classification of Matter

Classification of Matter

Classification of Matter Example 1

Classification of Matter Example 1

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Types of Matter: Elements, Compounds, and Mixtures

Types of Matter: Elements, Compounds, and Mixtures

Professor Dave Explains

Classification of Matter

Classification of Matter

Classifying Matter With Practice Problems | Study Chemistry With Us

Classifying Matter With Practice Problems | Study Chemistry With Us

Melissa Maribel

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

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

Changes of State

Changes of State

Classification of Matter

Classification of Matter

The Science Classroom

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

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

Conquer Chemistry

Pure Substances and Mixtures! (Classification of Matter)

Pure Substances and Mixtures! (Classification of Matter)

Classification of Matter

Classification of Matter

The Science Classroom

CLASSIFICATION OF MATTER | Animation

CLASSIFICATION OF MATTER | Animation

Classification of Matter

Classification of Matter

Biology Professor

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

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

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Practice this topic

Multiple Choice

Which of the following statements is true?

Multiple Choice

Choose the homogeneous mixture from the list below.

Classify each of the following as an element, compound or mixture.

a) Ammonia, NH3

b) Gold bar

c) Orange juice

d) Wine

e) Saline solution

Multiple Choice

Consider the following data obtained by decomposing samples of carbon dioxide, CO₂, into its component elements.

Mass of CO₂ and Components
Sample	Mass CO₂	Mass C	Mass O₂
1	44.00 g	12.00 g	32.00 g
2	22.00 g	6.00 g	16.00 g
3	88.00 g	24.00 g	64.00 g

Which of the following statements is consistent with this data?

Multiple Choice

Atoms __________ .

Multiple Choice

Which of the following is an example of a pure substance?

Multiple Choice

Choose the homogeneous mixture from the list below.

A _____ is a physical combination of matter in any proportions.

Textbook Question

Which of the following statements is a hypothesis about the synthesis of gold nanoparticles? (LO 1.1) (a) Adding a salt solution to gold nanoparticles causes the color to change from red to blue. (b) To examine the effect of salt on gold nanoparticles, variable concentrations of salt are added to the nanopar-ticles and the results are measured (c) A solution of gold nanoparticles with an average diam-eter of 30 nm has a wavelength of maximum absorption of 450 nm and is a reddish-orange color. (d) Adding a substance with a negative charge to the surface of the nanoparticles creates repulsive forces that stabilize small particle size

Textbook Question

Which of the following figures represents (d) a mixture of an element and a compound? (More than one picture might fit each description.)

Textbook Question

Which of the following figures represents (a) a pure element, (More than one picture might fit each description.)

Textbook Question

Which of the following figures represents (c) a pure compound, (More than one picture might fit each description.)

Textbook Question

Which of the following figures represents (b) a mixture of two elements, (More than one picture might fit each description.)

Textbook Question

Musical instruments like trumpets and trombones are made from an alloy called brass. Brass is composed of copper and zinc atoms and appears homogeneous under an optical microscope. The approximate composition of most brass objects is a 2:1 ratio of copper to zinc atoms, but the exact ratio varies somewhat from one piece of brass to another. (a) Would you classify brass as an element, a compound, a homogeneous mixture, or a heterogeneous mixture?

Textbook Question

Is the separation method used in brewing a cup of coffee best described as distillation, filtration, or chromatography?

Textbook Question

The molecular illustration represents (LO 2.18) (a) a pure element (b) a mixture of two elements (c) a pure compound (d) a mixture of an element and a compound

Textbook Question

The photo below shows a picture of an agate stone. Jack, who picked up the stone on the Lake Superior shoreline and polished it, insists that agate is a chemical compound. Ellen argues that it cannot be a compound. Discuss the relative merits of their positions.

Textbook Question

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.

Textbook Question

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

Textbook Question

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

Textbook Question

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

Textbook Question

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

Textbook Question

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

Textbook Question

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?

Textbook Question

Millikan determined the charge on the electron by studying the static charges on oil drops falling in an electric field (Figure 2.5). A student carried out this experiment using several oil drops for her measurements and calculated the charges on the drops. She obtained the following data: Droplet Calculated Charge (C) A 1.60 * 10-19 B 3.15 * 10-19 C 4.81 * 10-19 D 6.31 * 10-19 (c) What value should she report for the electronic charge?

Textbook Question

The following statements pertain to the development of the theory of combustion by the French chemist Lavoisier in the eighteenth century. Match the statement with the appro-priate step (observation, hypothesis, experiment designed to test hypothesis) in the scientific method (c) Combustion of a metal in a closed container ceases after a length of time.

Textbook Question

The following statements pertain to the development of the theory of combustion by the French chemist Lavoisier in the eighteenth century. Match the statement with the appro-priate step (observation, hypothesis, experiment designed to test hypothesis) in the scientific method (b) Oxygen gas combines with a substance during its combustion.

Textbook Question

The following statements pertain to the development of the theory of combustion by the French chemist Lavoisier in the eighteenth century. Match the statement with the appro-priate step (observation, hypothesis, experiment designed to test hypothesis) in the scientific method (a) A metal is burned in a closed container, and the change in mass of the solid and volume of the gas is measured.

Textbook Question

The following statements pertain to the development of the theory of the structure of DNA. Match the statement with the appropriate step (observation, hypothesis, experiment designed to test hypothesis) in the scientific method. (b) In a sample of DNA, there are equal amounts of the bases A and T and equal amounts of the bases C and G.

Textbook Question

The following statements pertain to the development of the theory of the structure of DNA. Match the statement with the appropriate step (observation, hypothesis, experiment designed to test hypothesis) in the scientific method. (a) Two strands of DNA wind around one another in a helical structure.

Textbook Question

The following statements pertain to the development of the theory of the structure of DNA. Match the statement with the appropriate step (observation, hypothesis, experiment designed to test hypothesis) in the scientific method. (c) Direct X rays at a sample of crystallized DNA, and inter-pret the diffraction pattern for structural information.

Textbook Question

Classify each statement as an observation, a law, or a theory. a. All matter is made of tiny, indestructible particles called atoms. b. When iron rusts in a closed container, the mass of the container and its contents does not change. c. In chemical reactions, matter is neither created nor destroyed. d. When a match burns, heat is released

Textbook Question

Classify each statement as an observation, a law, or a theory. a. Chlorine is a highly reactive gas. b. If elements are listed in order of increasing mass of their atoms, their chemical reactivities follow a repeating pattern. c. Neon is an inert (or nonreactive) gas. d. The reactivity of elements depends on the arrangement of their electrons.

Textbook Question

Refer to Figure 1.2. What is developed when numerous observations support a hypothes

Textbook Question

What is the difference between a hypothesis and theory? (a) A hypothesis provides an explanation for a phenomenon, but a theory does not. (b) A theory provides an explanation for a phenomenon, but a hypothesis does not. (c) Both a theory and a hypothesis provide an explanation for a phenomenon, but a theory has been upheld by experi-mental observations

Textbook Question

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

Textbook Question

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

Textbook Question

Determine whether each molecular diagram represents a pure substance or a mixture. If it represents a pure substance, classify the substance as an element or a compound. If it represents a mixture, classify the mixture as homogeneous or heterogeneous.

Textbook Question

In the following drawings, red and blue spheres represent atoms of different elements. Match the molecular pictures (a)–(c) with the following descriptions: (i) a pure substance consisting of a compound (ii) a pure substance consisting of an element (iii) a mixture of element

Textbook Question

Determine whether each molecular diagram represents a pure substance or a mixture. If it represents a pure substance, classify the substance as an element or a compound. If it represents a mixture, classify the mixture as homogeneous or heterogeneous.

Textbook Question

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

Textbook Question

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

Textbook Question

(b) A(n) _________ reliably predicts the behavior of matter, while a(n) _________ provides an explanation for that behavior.

Textbook Question

(a) Which is more likely to eventually be shown to be incorrect: an hypothesis or a theory?

Textbook Question

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.

Textbook Question

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.

Textbook Question

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.

Textbook Question

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.

Textbook Question

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.

Textbook Question

Judge the following statements as true or false. If you believe a statement to be false, provide a corrected version. (f) A hypothesis is more weakly supported by experimental evidence than a theory.

Based on the given information, what is the best classification for this sample of crude oil?

What is the basic form of matter that cannot be broken down any further?

Which solution is a homogeneous mixture: sand and water, salt and water, salad dressing, or soil?

In the following images, the white spheres represent hydrogen atoms and the red spheres represent oxygen atoms. classify each sample as an element, a compound, or a mixture.

Which term describes a pure substance that is made up of only one type of atom?

What is the correct classification of a mixture in which both a solid and a liquid are visible?

Which of the following is a homogeneous mixture

Which of the following is a compound

Which of the following are mixtures

Which of the following is the correct representation of a mixture of an element and a compound?

Unlike an element, a(n) ________ may be separated through a physical process like filtration.

One particular type of atom and it cannot be broken down into a simpler substance

A substance made up of two or more elements that have been chemically combined is called

A substance made of atoms of two or more different elements joined by chemical bonds.

Water, air, and glass are examples of ________.

A substance that cannot be broken down into other substances by ordinary chemical procedures is a(n)

When 1 carbon atom combines with 2 oxygen atoms, the resulting substance is called a(n)?

A pure chemical substance that consists of one type of atom is called a(n)

A(n) ____________________________________________ is a pure substance made of only one type of atom.

Which of the following could be classified as matter? check all of the boxes that apply.

A homogenous mixture of two or more substances is known as a(n)

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