two or more substances that are chemically combined

https://questions.llc/answers/1988165/stop-cheating-and-do-your-own-work-people, Created These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. 2) B Stack Overflow at WeAreDevelopers World Congress in Berlin, How different are molecule with same connectivity. All compounds are substances, but not all substances are compounds. MathJax reference. An example of this is cookie dough as opposed to oxidation. substance containing two or more elements chemically combined, EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE, Created https://questions.llc/answers/1791630/thank-you-paris-4-4-100, Created Chlorine is a deadly gas. concentration A measure of the amount of solute dissolved in a solvent solution composed of particles of two or more substances that are distributed evenly among each other. 6 Which is the best description of a mixture? A heterogeneous mixture consists of two or more phases. https://questions.llc/answers/1809930/1-d-2-b-3-a-4-c-100. The cookie is used to store the user consent for the cookies in the category "Performance". Thus, the user of the chemical in the US might choose between the bulk or "technical grade" with higher amounts of impurities or a much purer "pharmaceutical grade" (labeled "USP", United States Pharmacopeia). A mixture is composed of different types of atoms or molecules that are not chemically bonded. Pure substances may be divided into two classes: elements and compounds. Acids and bases react with one another to form compounds called ______. https://questions.llc/questions/1009229/1-which-of-the-following-is-true-about-mixtures-1-point-mixtures-consist-of-two-or. https://questions.llc/answers/1377702/do-it-yourself-people, Created March 1, 2019 7:22pm UTC, URL But opting out of some of these cookies may affect your browsing experience. (1 point), I have an assignment about deep sea diving and of course it involves some gas mixtures to be used. October 11, 2017 9:41am UTC, URL on their own they are either elements or molecularly September 17, 2020 1:40pm UTC, URL Chemists frequently refer to chemical compounds using chemical formulae or molecular structure of the compound. If there are more than one type of molecules present in a substance, it is called a: If a substance contains two or more kinds of molecules, what is it called? chemical compound, any substance composed of identical molecules consisting of atoms of two or more chemical elements. September 17, 2015 4:01pm UTC, URL When a meteor hits the Earth it may form this? Methane is a pure substance because it always has the same composition. (C.) allow the water to evaporate This page was constructed from content via the following contributor(s)and edited (topically or extensively) by the LibreTexts development team to meet platform style, presentation, and quality: MarisaAlviar-Agnew(Sacramento City College). September 21, 2020 3:18pm UTC, URL Accessibility StatementFor more information contact us atinfo@libretexts.org. September 24, 2019 6:56pm UTC, URL The compound sodium chloride is a white solid which is essential for all living things (see below). Describing the quantitative relationships among substances as they participate in chemical reactions is known as reaction stoichiometry. A process in which a liquid is boiled to produce a vapor that is condensed again into a liquid is called. 1.the smallest unit of an element atom 2.the path surrounding the nucleus of an atom in which electrons are normally located molecule 3.the number of protons in the nucleus of the atom proton 4.a pure substance where atoms of two or more elements are chemically bonded to one another shell 5.the positive. Which of the following is true about mixtures? https://questions.llc/answers/1896643/they-right, Created When two or more compounds are mixed together but not chemically combined the result is called a mixture. September 21, 2020 1:11pm UTC, URL )Magnetic attraction https://questions.llc/answers/1146752/sorry-ur-wrong, no she's not, Paris is 100% right. Mixtures are formed when two substances are combined physically. February 12, 2021 3:18pm UTC, URL https://questions.llc/answers/1555428/1-d-2-b-3-a-4-c-are-the-correct-answers-for-connections-students-as-of-march-of-2017, Created 4 What is a combination of two or more substances in any proportions? Water is still a compound, but one which cannot be broken down into hydrogen and oxygen by heating. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. Making statements based on opinion; back them up with references or personal experience. A mixture is a physical combination of two or more substances where there is no chemical combination or reaction. https://questions.llc/answers/2042608/dbac-100-correct-trust-me-4-4, Created For example, gasoline is not a single chemical compound or even a particular mixture: different gasolines can have very different chemical compositions, as "gasoline" is primarily defined through source, properties and octane rating. In principle, they can be separated into the component substances by purely mechanical processes. It does not store any personal data. https://questions.llc/answers/1921450/cav-there-is-only-four-questions. (1 point) Mixtures consist of two or more substances chemically combined. We can eliminate answer choices A and B as these describe chemical combinations. Atomic numberis Pure substances may be divided into two classes: elements and compounds. A mixture, on the other hand, is a combination of two or. In chemistry, a mixture is a material made up of two or more different chemical substances which are not chemically bonded. In 2011, PNAS published is a very intriguing result that showed this was true for fruit flies in the case of some odorants. !!!!!! Assertion :Mixture can not be represented by a chemical formula.Reason: Mixture is a material system made up of two or more different substances which are mixed but are not combined chemically. Chemical substances can be solids, liquids, gases, or plasma. A substance that cannot be changed into simplar substances chemically combined in a fixed proportion. A mixture of iron and sulfur can be separated by __________________. chemical reaction. You are correct, Created If the ligand bonds to the metal center with multiple atoms, the complex is called a chelate. There are two basic theories: the "shape" hypothesis and the "vibrations" hypothesis. September 18, 2019 8:24pm UTC, URL 100% for Connexus, Created Two or more elements combined into one substance through a chemical reaction, such as water, form a chemical compound. Which statement identifies why oxygen is classified as a pure substance and air is classified as a mixture? However, tautomers are an exception: the isomerization occurs spontaneously in ordinary conditions, such that a pure substance cannot be isolated into its tautomers, even if these can be identified spectroscopically or even isolated in special conditions. two or more substances in indefinite quantities and indefinite proportions. The matter is further divided into various forms such as solid, liquid and gas. Which of the following is a compound? Mixtures consist of only one kind of atom. November 1, 2016 3:34pm UTC, URL Get started for free! Created March 30, 2016 4:16pm UTC, URL To combine substances chemically, chemical bonds are required. A compound is formed when two or more elements are chemically bound together. 3) Magnetic attraction December 21, 2018 10:58pm UTC, URL December 5, 2017 5:13pm UTC, URL Would Flame test be useful for detecting metal ions present in a mixture of metal ions?? https://questions.llc/answers/1451387/thanks, Created (D.) Mixtures have two or more substances mixed together, but are not chemically combined Salt and other compounds can only be decomposed into their elements by a chemical process. https://questions.llc/answers/1807460/thank-you-100, i lost 43 trillion dollars and did it deliberately, Created Of course, the real answer may be a combination of both theories. *** Why might two different chemical structures smell the same? you should not be useing this to cheat ony to check your answer because it you cheat you teacher will give you more advanced work and you dont even know the answer yes i am one of the workers for jiskha.com and we decided only to check your work, Created April 21, 2020 4:48pm UTC, URL 4. Pure substances are further broken down into elements and compounds. https://questions.llc/answers/2186422/1-d-mixtures-have-two-or-more-substances-2-b-heterogeneous-3-a-magnetic, Dont listen to them they lied for connexus, Created Did you know that mixtures consist of two or more substances mixed together, but they are not chemically combined? Created (1 point) freeze the saltwater, and then let it melt again The last step in production should be the analysis of batch lots of chemicals in order to identify and quantify the percentages of impurities for the buyer of the chemicals. { "3.3.01:_Chemical_Formulas_-_How_to_Represent_Compounds" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass230_0.b__1]()" }, { "3.01:_Properties_of_Atoms" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass230_0.b__1]()", "3.02:_Summary_of_Atomic_Theory_and_the_Construction_of_Atoms" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass230_0.b__1]()", "3.03:_Compounds" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass230_0.b__1]()", "3.04:_A_Molecular_View_of_Elements_and_Compounds" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass230_0.b__1]()", "3.05:_Ionic_Compounds" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass230_0.b__1]()", "3.06:_How_to_Name_Compounds" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass230_0.b__1]()", "3.E:_Atoms_Molecules_and_Ions_(Exercises)" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass230_0.b__1]()" }, { "00:_Front_Matter" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass230_0.b__1]()", "01:__Basics_of_Measurement" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass230_0.b__1]()", "02:_Matter_and_Energy" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass230_0.b__1]()", "03:_Elements_and_Compounds" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass230_0.b__1]()", "04:_The_Mole_Concept" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass230_0.b__1]()", "05:_Chemical_Reactions" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass230_0.b__1]()", "06:_Introduction_to_Stoichiometry" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass230_0.b__1]()", "07:_Electrons_and_Chemical_Bonding" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass230_0.b__1]()", "08:_Gases" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass230_0.b__1]()", "09:_Attractive_Forces" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass230_0.b__1]()", "10:_Aqueous_Solutions" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass230_0.b__1]()", "11:_Acids_and_Bases" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass230_0.b__1]()", "12:_Stoichiometry_Applications" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass230_0.b__1]()", "13:_Oxidation_and_Reduction" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass230_0.b__1]()", "14:_Radioactivity_and_Nuclear_Chemistry" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass230_0.b__1]()", "zz:_Back_Matter" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass230_0.b__1]()" }, [ "article:topic", "showtoc:no", "authorname:anonymous", "source[1]-chem-47474", "source[2]-chem-47474", "license:mixed" ], https://chem.libretexts.org/@app/auth/3/login?returnto=https%3A%2F%2Fchem.libretexts.org%2FCourses%2FMadera_Community_College%2FMacArthur_Chemistry_3A_v_1.2%2F03%253A_Elements_and_Compounds%2F3.03%253A_Compounds, $ \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}}}$ $ \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash{#1}}} $$\newcommand{\id}{\mathrm{id}}$ $ \newcommand{\Span}{\mathrm{span}}$ $ \newcommand{\kernel}{\mathrm{null}\,}$ $ \newcommand{\range}{\mathrm{range}\,}$ $ \newcommand{\RealPart}{\mathrm{Re}}$ $ \newcommand{\ImaginaryPart}{\mathrm{Im}}$ $ \newcommand{\Argument}{\mathrm{Arg}}$ $ \newcommand{\norm}[1]{\| #1 \|}$ $ \newcommand{\inner}[2]{\langle #1, #2 \rangle}$ $ \newcommand{\Span}{\mathrm{span}}$ $\newcommand{\id}{\mathrm{id}}$ $ \newcommand{\Span}{\mathrm{span}}$ $ \newcommand{\kernel}{\mathrm{null}\,}$ $ \newcommand{\range}{\mathrm{range}\,}$ $ \newcommand{\RealPart}{\mathrm{Re}}$ $ \newcommand{\ImaginaryPart}{\mathrm{Im}}$ $ \newcommand{\Argument}{\mathrm{Arg}}$ $ \newcommand{\norm}[1]{\| #1 \|}$ $ \newcommand{\inner}[2]{\langle #1, #2 \rangle}$ $ \newcommand{\Span}{\mathrm{span}}$$\newcommand{\AA}{\unicode[.8,0]{x212B}}$, 3.2: Summary of Atomic Theory and the Construction of Atoms, 3.3.1: Chemical Formulas - How to Represent Compounds, Compounds were first introduced in a previous chapter. pure substance composed of two or more elements that are chemically combined in a specific mass ratio. https://questions.llc/answers/1798789/paris-is-right, Created Asking for help, clarification, or responding to other answers. non-chemically combined. ***magnetic attraction*** One cannot manufacture pure open-chain glucose because glucose spontaneously cyclizes to the hemiacetal form. What are the effects of rotation and revolution of the Earth and the effect of the tilt of Earth's axis? September 15, 2016 2:52pm UTC, URL The substances in a(n) ________________ mixture are usually easily seen and separated. No one answered question 5. This means that mixtures can be separated by physical means. This is illustrated in the image here, where the balanced equation is: Here, one molecule of methane reacts with two molecules of oxygen gas to yield one molecule of carbon dioxide and two molecules of water. A chemical compound can be either atoms bonded together in molecules or crystals in which atoms, molecules or ions form a crystalline lattice. EX: Helium = He, Gold = Au, Aluminum =Al A compound is a substance that contains two or more elements chemically combined in a fixed proportion. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. Pure substances that cannot be broken down into simpler substances by chemical changes are called elements. September 17, 2019 4:43pm UTC, URL ***Mixtures have two or more substances mixed together, but are not chemically combined. September 15, 2016 2:51pm UTC, URL This particular chemical equation is an example of complete combustion. https://questions.llc/answers/2332905/yall-stop-just-saying-the-letters-its-wrong-because-they-swich-the-answers-and-all-of, try to find the H A physical blend of two or more substances that are not chemically combined. While fine chemicals may be more complex, many of them are simple enough to be sold as "building blocks" in the synthesis of more complex molecules targeted for single use, as named above. Research chemicals are produced individually for research, such as when searching for synthetic routes or screening substances for pharmaceutical activity. One of the simplest is called methane, in which there are always four times as many hydrogen particles as carbon particles. I just don't know what. https://questions.llc/answers/1764684/thank-you-paris-i-got-a-100-d-b-a-c, Created I LOST $43,000,000,000 AND DID IT DELIBERETLY, Ability to mix with other substances of the same, 1. What is a combination of two or more pure substances that are not chemically combined? (A. https://questions.llc/answers/2110574/hey-anonymous-your-here-saying-do-it-urself-i-bet-ur-not-doing-it-urself-so-stop-it, buesh sometimes i dont wanna be happyyy dont hold it against me- dexie demailo, Created https://questions.llc/answers/1501281/wolfart-is-right, Mixtures can NOT be mixed with chemicals, so 1 is D, January 8, 2020 7:44pm UTC, URL December 6, 2016 5:24pm UTC, URL January 31, 2014 12:21am UTC, URL This means that they have not reacted together, and no new substance has been formed. She tried pouring the saltwater through a piece of filter paper, but the salt did not separate from the water. Luca Turin is the foremost exponent of the more controversial and less widespread "vibrations" hypothesis, but he does a good job of explaining both theories in his TED . https://questions.llc/answers/1826134/can-i-get-an-f-in-chat-no-one-answered-question-5, Created Is the statement true that unlike planets a dwarf planet cannot have moons? It cannot be separated into components without breaking chemical bonds. https://questions.llc/answers/1547198/paris-is-right-i-got-a-3-4-tho-because-wolffart-sad-that-it-was-d-but-it-was-b-so-paris. a combination of 2 or more elements a place where people are held 2. a compound. https://questions.llc/answers/1451389/thanks-i-got-100, Created Align \vdots at the center of an `aligned` environment. March 21, 2017 5:11pm UTC, URL January 17, 2018 3:54pm UTC, URL September 19, 2020 2:21am UTC, URL [1] A mixture is the physical combination of two or more substances in which the identities are retained and are mixed in the form of solutions, suspensions and colloids. September 20, 2020 8:22pm UTC, URL A heterogeneous mixture varies in its composition. a combination of two or more substances that are not chemically combined O a combination of two or more elements that are combined in a certain ratio What is a solution? I know this because I just took the quick check and these are all the answers :D, Created Isomers usually have substantially different chemical properties, and often may be isolated without spontaneously interconverting. January 9, 2019 3:49pm UTC, URL Use MathJax to format equations. Created When a substance contains two or more kinds of molecules, it is called a mixture. February 6, 2020 6:05pm UTC, URL Phase. February 19, 2019 4:36pm UTC, URL This cookie is set by GDPR Cookie Consent plugin. Multiple-choice 30 seconds 1 pt What is a mixture? distillation. An example from Luca's talk is a complex alcohol vs. the corresponding thiol. Complete answer: The examples of combinations of substances that are not combined chemically are Mixtures and solutions. So far this is correct for 9-21-20 Hope I helped ;P, Created By definition, a pure substance or a homogeneous mixture consists of a single phase. Often a pure substance needs to be isolated from a mixture, for example from a natural source (where a sample often contains numerous chemical substances) or after a chemical reaction (which often gives mixtures of chemical substances). Chemistry Stack Exchange is a question and answer site for scientists, academics, teachers, and students in the field of chemistry. Are the correct answers for connections students as of March of 2017 but IDK for the future. )Heterogeneos Two or more substances that are not chemically combined? What does a low or medium mass main sequence star look like? https://questions.llc/answers/1895902/d-b-a-c-was-correct-for-me-thank-you, Created https://questions.llc/answers/1010002/1-mixtures-have-two-or-more-substances-2-heterogeneous-3-magnetic-attraction-4, Created December 15, 2020 6:45pm UTC, URL October 7, 2020 8:31pm UTC, URL It is actually the physical combination of two or more substances that are able to retain the identities while they are mixed in form of solutions, suspensions or colloids. Oxygen has a higher density than air. September 20, 2018 1:36pm UTC, URL A compound is a substance that contains two or more elements chemically combined in a fixed proportion.
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