a. Ziese's salt b. cis-platin c. Ferrocene d. Vitamine B12 co-enzyme, "cobalamine" A. 3,482,005 mg a) 0b) 5c) 6d) 7e) infinite Q. Which of the following is a physical change? Helium gas B. Hydrogen C. Ice D. Iron Which of these compounds satisfy the operational definition of a base? D)heating the substance causes no visible color change : Lone pair of electrons on N atom, is not conjugated with the electrons of double bond, so no resonance. 1. Which of the following is TRUE about the physical property of an ionic. Q. A substance that can be separated into two or more substances only by a chemical change is a(n) ____. That means it consists of only one atom. NaCl and KCl are ionic compounds which dissociate into its ions in the aqueous solution. Multiple Choice Quiz. A compound is a word or word group that consists of two or more parts that work together as a unit to express a specific concept. Elements are classified as metals, non- metals and semi metals. Which of the following is not considered a true organometallic compound? Elements, Compounds and Mixtures. 21 Which of the following compounds could not be converted into pivalic acid ( 2,2-dimethylpropanoic acid ) in three or fewer steps? both a physical change and a chemical change. A chemical compound consists of two or more elements. Examples are double-check, cost-effective, around-the-clock, hand-to-hand, forward-thinking, eyeliner, and iced tea.They might also be formed from prefixes or suffixes, as in ex-president, supermicro, presorted, shirtless, or unforgivable. A molecular of a compound has atoms of different elements. For a given compound t he ratio of different elements is fixed. A) 3,3-dimethyl-1-butene B) 2,3-dimethyl-2-butene (the exact combination of elements are always the same). Y represents an el.ement and W represents a mixture Heterocyclic compound, also called heterocycle, any of a major class of organic chemical compounds characterized by the fact that some or all of the atoms in their molecules are joined in rings containing at least one atom of an element other than carbon (C). Which of the following is true about compounds? Explanation: Among the given options Brass is not a compound. Try this as often as you like. c) It has a shorter duration of action than adrenaline. Contents. The first figure in a properly written chemical symbol always is ____. 1. A deep dive into Meghan and Harry's finances, Morgan leads anti-Meghan U.K. reaction to interview, Historic 'Idol' audition: 'You just saw Beyoncé get born', Tom Brady shouts out niece as 'most dominant' Brady, Here's who gets a $1,400 payment under revamped bill, College student dies after alleged hazing incident, Ex-'Housewives' star walks back harsh Markle remarks, Race is focus in previously unaired Meghan, Harry clips, 11 bombshells from Harry, Meghan in tell-all interview, Your 2020 taxes may affect your next stimulus check. B. Which of the following correctly describes a compound? (a) NaOH (b) MgO (c) Ca(OH) 2 (d) H 2 O (e) NH 3. Which of the following is a chemical property? The molecular formula of C H 3 − C O C H 2 C H 2 C H 2 C H 3 is C 6 H 1 2 O and the molecular formula of the compound … Which of the following is NOT an ionic compound? They are compounds because they each contain more than one kind of … (The bond dissociation energy is the amount of energy needed to break a given bond of a molecule in the gaseous phase.) Which state of matter is characterized by having an indefinite shape, but a definite volume? None of these 3. c. 4. c) It has a shorter duration of action than adrenaline. Eluate How many significant figures are contained in the following measurement? Question 6. 3,482,005 mg a) 0b) 5c) 6d) 7e) infinite The smallest part of a compound is called a molecule. A. Therefor the answer is "B. Erin and Maria are going to the mall, and John is going to the movies" and "C. After the rain stopped, the girls decided to go to the park". D) Its constituents cannot be separated by simple physical methods. Which of the following does NOT indicate that a chemical change may have taken place? Which of the following is NOT a covalent compound? Which of the following is not a nucleophile? Answer: B) All particles of compound are of only one type. Favourite answer. D) Soda ash. What must occur for a change to be a chemical reaction? Correct answer to the question Which of the following is a compound? PCl 4. check_circle Expert Answer. Define the following terms as they relate to the topics covered in this course. which of the following item is NOT a compound. All of the following changes to a metal are physical changes EXCEPT ____. Which of the following indicates that a chemical change has happened during cooking? Consider a mystery compound … Which of the following compounds would be expected to display these features? A chemical change occurs when a piece of wood ____. What is the temperature of the heated gas? There must be a change in chemical properties. Aromatic Compounds. What distinguishes a substance from a mixture? an example of a homogeneous mixture is ____ water. Which of the following is true about homogeneous mixtures? When paper turns yellow-brown upon exposure to sunlight, what type of change is likely taking place? The elements in a compound are combined in definite proportions. 1. b. Which conversion factor below would be used to change liters of oxygen gas to moles of oxygen gas at STP? Home. B)cannot be broken down into simpler substances by physical methods. Which state of matter takes both the shape and volume of its container? What chemical is best for dissolving flesh? Choose one. Which of the following compounds is not an Arrhenius base? Which state of matter is characterized by having a definite shape and a definite volume? Answer verified by Toppr. Kate W. 1 decade ago. 2. A. Compound sentences occur when two independent sentences are combined into a single sentence. Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes! User: Consider a mystery compound having the formula M T. If the compound is not an acid, if it contains only two elements, and if M is not a metal, which of the following is true about the compound? A. CO2 B. FeO C. NH3 D. N2O. a. NaCl and KCl are ionic compounds which dissociate into its ions in the aqueous solution. * A blueberry muffin is an example of: A) a compound.B) an element C) a heterogeneous mixture.D) a homogenous mixture. Personalized courses, with or without credits. Hawley 'not going anywhere.' What do chemical symbols and formulas represent, respectively? AgBr. Question 6. "X is most likely a covalent compound. co2 and H2O are compounds. Booster Classes. Carbon and its compounds quiz: trivia. They have low melting points. b) It is active at the β2-adrenorecptor. O2 and H2 are molecular elements. A) Composition is variable. The answer is (c.) water is a compound. A. aqueous ethanol B. sodium sulfate C. hydrochloric acid D. calcium carbonate? The atoms have no set ratio for how the atoms can combine, and they are not chemically bonded together. The compound represented by option B is not an isomer of the given compound. This 55 words question was answered by Heather L. on StudySoup on 5/31/2017. CO. H 2 O. FePO 3. Among the various classes of organohalogen compounds, aryl halides have the strongest carbon-halogen bonds and alkyl halides the weakest, as, for example, in the following series of organochlorine compounds. Hence, N2 cannot be considered a compound. A substance that forms a vapor is generally in what physical state at room temperature? The chemical formula of a compound does NOT indicate the ____. Homework Help. Answer: (e) 11-7. Which of the following is a chemical property of water at 4 degrees C? A substance that can be separated into two or more substances only by a chemical change is a(n) ____. compound? Since it is an alloy, it is a mixture. They cannot be decomposed into other atoms. Describe what happens to a red blood cell that is put into a 2.0 molar sodium chloride solution.. From the options provided, we can see Option D (H2O2 H 2 O 2) and Option E (C3H8 C 3 H 8) are made of all non-metals and are therefore covalent compounds. Which of the following correctly describes a compound? It is soft and brittle. B. A. AlN B. CO C. K2O D. Li2O. Which substance is a non-electrolyte? "Z" is not malleable and is a conductor of electricity when liquid, but not when solid, so it is most likely an ionic compound. wingnutrosie. All the given options are not compound. Describe how you would obtain compound C. The amount of methanol in mobile phase should be increased for C to elute 3. The following compounds dissolve in water to form solutions that turn litmus from red to blue. They are solids. It is a mixture of copper and zinc. An example of an extensive property of matter is ____. Having defined both terms, the difference between a molecule and a compound is that for a molecule to be considered a compound, it must contain atoms of different elements. Based on this, all the options in the question are molecules but (N2) molecule has only atoms of the same element (Nitrogen). Metals and Non-Metals. *Select all that apply* NaCl. All of the following are physical properties of a substance in the liquid state EXCEPT ____. An example of a homogeneous mixture is ____. Which of the following is NOT an example of matter? A golf ball has more mass than a tennis ball because it ____. d) The (R)-stereoisomer is the more active. 3. Get the detailed answer: Which of the following is not a characteristic of most ionic compounds? For two compound to be isomers, they should have same molecular formula. What is the molecular geometry of IF4-? Of the following, which one is the best leaving group? The atoms are bonded together, and the compound has different physical and chemical properties than the individual elements. Which state of matter has a definite volume and takes the shape of its container? A chemical compound consists of two or more elements. its ability to decompose into hydrogen and oxygen. Check the composition of the sample before and after the change. A compound is a substance that is composed from two or more different elements. Describe the role of a salt bridge in a voltaic cell.? Sodium, Na, is just an element. How did he get here? In this quiz you will get to test your knowledge on carbon compounds and their characteristics. A compound can only be separated into its components by chemical means. For a story? You will get a different set of questions each time you attempt this quiz. Which of the following observations demonstrates that a solid sample is a compound? Which of the following represents a compound? Which of the following is a homogeneous mixture? Iron B. Oxide C. Sorbate D. Sulfate 10. B. The atoms have no set ratio for how the atoms can combine, and they are not chemically bonded together. Which of the following materials is a substance? 2. D. It has a low melting point. Get the detailed answer: Which of the following is a molecule but not a compound a) NaCl b) O2 c) H2O d) N. Switch to. Which of the following is NOT a physical change? Your dashboard and recommendations. Which of the following CANNOT be classified as a substance? The 1 Hnmr has a strong doublet at δ1.0 ppm. b) It is active at the β2-adrenorecptor. The following are found in an ingredient’s label. Which of the following processes does NOT involve a change in chemical properties? What is the sum of the coefficients if the following unbalanced equation is balanced? Water: H and O: Compound C. Carbon dioxide: C and O: Compound D. Magnesium chloride: Mg and Cl: Compound 11. which cannot be separated into its constituent elements by physical methods of separation. A compound is a substance that is composed from two or more different elements. a chemical change occurs when a piece of wood ____. Which of the following is used for chemical symbols today? Water (H 2 O), table salt (NaCl), carbon dioxide (CO 2), methane (CH 4) and chlorophyll (C 55 H 72 O 5 N 4 Mg) are a few examples of compounds. A compound is a chemical combination of two or more different elements joined together in a fixed proportion. F Cl Br I All of these are equally good LG. All of the following are physical properties of matter EXCEPT ____. Want to see the step-by-step answer? Hydrochloric acid is the gas dissolved in water while hydrogen chloride is the gaseous compound which is covalent in nature by its molecular structure. Which of the following does not apply to a chemical compound? Study Guides. OH^- CH_3CH_2O^- CH_3CH_2OH H_2O Which is not a polar aprotic solvent? Which of the following is NOT correctly matched? Carbon tetrachloride is a covalent compound and dissolves in ether and alcohol like organic compounds. Which of the following are considered physical properties of a substance? H_2O CH_3O NH_3 NH_4 All are nucleophiles. An aromatic compound is a hydrocarbon containing sigma bonds with delocalized pi electrons that are shared among all carbon atoms forming a planar circle. An Irish scientist who is now considered the father … Which of the following is true about compounds? compound. A. What is the molecular geometry of BrF4-? The elements in a compound are combined in definite proportions. Explanation: A mixture is made from different substances that are not chemically joined.Compound: Want to see this answer and more? The atoms are bonded together, and the compound has different physical and chemical properties than the individual elements. A. Which of the following items is NOT a compound? How many significant figures are contained in the following measurement? Still have questions? Water (H 2 O), table salt (NaCl), carbon dioxide (CO 2), methane (CH 4) and chlorophyll (C 55 H 72 O 5 N 4 Mg) are a few examples of compounds. B) All particles of compound are of only one type. 1. calcium chloride 2. sodium 3. sucrose 4. water? Which is the strongest nucleophile? 1. Explanation: 1. b. 3.7 million tough questions answered. What is the mass of 0.240 mol glucose, C6H12O6? A compound is composed of two or more elements. Therefore H2O and CO2 are compounds. B) Quick lime. Hence it can be represented by three resonating structures. A)cannot be broken down into simpler substances by chemical methods. Which of the following is NOT a compound? C. The characteristics of the compound are different from the characteristics of the … All of the properties of "X" are properties of covalent compounds. C. The characteristics of the compound are different from the characteristics of the … "Y" is malleable and a conductor when solid, so it is most likely a metal. Answers: 1 on a question: Which of the following is NOT a compound using the given set of properties? 4. silver. They are (pure) substances. Which of the following items is NOT a compound? Salt: Na and Cl : Element B. Which of the following is NOT a physical property of water? C) Particles of compound have two or more elements. C) Marble. Which of the following is a heterogeneous mixture? Study the diagrams representing elements, compounds and mixtures shown, and choose the correct statement from the following: X represents an element and W represents a mixture. Carbon is an important element in the world and it joins together with other elements to form compounds. What is one difference between a mixture and a compound? Most of the carbon compounds are not good conductors of electricity and diamond is considered the strongest compound of carbon. Salbutamol is an effective treatment for asthma; which of the following statements is not true: a) It can be synthesised from aspirin. Which of the following does not apply to a chemical compound? Would be considered a pure substance. all of the following are physical properties of matter EXCEPT_____ ability to rust. Which of the following materials is a substance? Compound C is less polar than A or B (c) After eluting with another 10 mL of 30% methanol/water mp, compound C has still not eluted. Which of the following is NOT an ionic compound? salad dressing. Element is a pure substance. option C is correct. Which of the following CANNOT be considered a single phase? A blueberry muffin is an example of: A) a compound.B) an element C) a heterogeneous mixture.D) a homogenous mixture. 1-hydroxybutanoic acid is not a real compound because at 1st position, there is already carboxylic functional group present where no other substituent can occupy more positions since C has its valency satisfied already. Join Yahoo Answers and get 100 points today. : It does not show resonance because there are no electrons. Which substance has a chemical symbol that is derived from a Latin name? Salbutamol is an effective treatment for asthma; which of the following statements is not true: a) It can be synthesised from aspirin. Get your answers by asking now. See Answer. It is hard but brittle. 1-hydroxybutanoic acid. What must be done to be certain that a chemical change has taken place? O2 and H2 are not. The physical properties of a compound are different than its constituent elements. Elements, Compounds and Mixtures. C. It has a low boiling point. Which is an element? What is the empirical formula for a compound that is 43.6% phosphorus and 56.4% oxygen? decays. Mixtures can be separated physically, while compounds cannot. Answer: A) Brass. C)heating the substance causes it to melt, then boil. Explanation: In general there are two types of substances they are: one is element and other is compound. c. Wh : It shows resonance due to the presence of lone pair of electrons on N atom and electrons on C = O bond. Separating a solid from a liquid by evaporating the liquid is called ____. Which action changes the identity of the substance referenced.
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