(Or Mixture, Solution, or Element? Explain. Explain. 4. Identify the following as elements, compounds, or mixtures: Identify the following as physical or chemical changes: Classify the following as homogeneous or heterogeneous: A ball falls off a cliff. 3. kilocalories to condense 8.0 kg of steam See Answer Whats the difference between homogeneous and heterogeneous? It contains water, sugar, and carbon dioxide, which forms bubbles. 65.3F=C What are the examples of homogeneous? - Of two or more different elements combine to form A chocolate-chip cookie does not have a uniform composition, which makes it a heterogeneous mixture. again to identify something as homogeneous or heterogeneous, you need to know the definitions of homogeneous and heterogeneous and some properties of that substance. Your friend who is visiting from Canada just took her temperature. A swimmer expends 855 kcal during practice. What wavelength photon would be required to ionize a hydrogen atom in the ground state and give the ejected electron a kinetic energy of 10.0 eV? 2. 1. water at the top of a waterfall The components are not evenly and uniformly mixed so they remain distinguishable from each other. d. Homogeneous mixture. An ice bag is filled with 125 g of ice at 0 C. Which is true about heterogeneous mixtures? - lomakm.qc.to Shampoo. Explain. Chemical, Describe each of the following properties for the element fluorine as physical or chemical: ;:fercB{\'\ q1074~c<>)FYldeT. other elements. Explain. Chocolate chip cookies are a heterogeneous mixture. gasoline = Homogenous Mn You aren't able to separate the ingredients in the sauce or the dough. - Metals can be shaped into wires (ductile) or hammered into a flat sheet (malleable). The n=3 energy level consists of one 3s, three 3p, and five 3d orbitals. What does it mean to say that a solution is a homogeneous mixture? Ammonia will corrode iron. Classifying Matter By Composition - Video. C 5. 3. Explain. Is carbon dioxide classified as an element, a compound, a homogeneous mixture, or a heterogeneous mixture? - Are not especially shiny, ductile, or malleable, and they are often poor conductors of heat and electricity. They have the same appearance and . 8. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. 2. Compound (a) KCl is the solute in a homogeneous mixture (b) KCl is the solute in a heterogeneous mixture (c) KCl is the solvent in a homogeneous mixture (d) KCl is the solvent in a heterogeneous mixture. ", Aheterogeneous mixturehas a non-uniform composition, meaning that if several samples are taken, each would contain either completely different chemicals orthe same chemicals, but in different ratios. Why a suspension is considered a heterogeneous mixture? Is potting soil a homogeneous mixture or a heterogeneous mixture? 2. You aren't able to separate the ingredients in the sauce or the dough. Where does heterogeneous mixture come from? b. Chemical Classify each of the following as a pure substance (element or compound) or a mixture (homogeneous or heterogeneous): Nitrox, a combination of oxygen and nitrogen used to fill scuba tanks a) Baby oil b) Chocolate chip Cookie c) Water and gasoline d) Wine e) gasoline 2) Classify each of the substance as a pure substance or a mixture. 1. calcium Give some examples. Na = sodium is resistant to corrosion = chemical Se A heterogeneous mixture consists of visibly different substances or phases. How is a chocolate chip cookie a good example of a heterogeneous 3. 4. number of electrons in a neutral atom, 1. 5. trimix (oxygen, nitrogen, and helium) in a scuba tank, 1. Explanation:Since the "o" is lower-case, it must be the second letter of the elemental symbol beginning with a capital "C". 4. 1100 cal, The energy needed to keep a 75-watt light bulb burning for 1.0 h is 270 kJ. "Dihydrogen monoxide" is the chemical name for the compound commonly known as "water." 3. 4. While water contains two hydrogens for every one oxygen, hydrogen peroxide (H2O2) contains a two-to-two ratio of hydrogen to oxygen. 2. nonmetal Water vapor is converted back to liquid as the water particles lose kinetic energy and slow down. Mixtures of Pure Substances. Explain. Each portion of the heterogeneous mixture may have a different ratio of the components in it. d) 3, What element has an atomic number of 12? 37.0C=F 1. calories to vaporize 10.0 g of water b. 180 cal Intro to Chem A103: Exam 1 Flashcards | Quizlet . has a grayish-white color = physical Atomic # 5. Copper in wire. Explain. Graphic on the left of "Dancing Raisins" shows liquid, solid, and gas substances in a heterogeneous mixture. 2. Is milk classified as an element, a compound, or a mixture? It is the same everywhere. Note that chemical names consist of words that resemble elemental names, and chemical formulas contain elemental symbols. A mixture is formed by combining two or more materials. Halo-halo44. sulfur 1. joules Is iron classified as an element, a compound, a homogeneous mixture, or a heterogeneous mixture? b) S A salad dressing is prepared with oil, vinegar, and chunks of blue cheese. . Concrete is a heterogeneous mixture of an aggregate: cement, and water. ignites spontaneously in air when finely divided, 25C to F 77 F liquid Is chicken soup an example of a homogeneous or heterogeneous mixture? 2. 4. The Capitalized "C" indicates the start of a second elemental symbol. What is difference between homogeneous and heterogeneous mixture? 25C to F 2600 J Is well-stirred hot chocolate a colloid, a suspension, or a solution? a. platinum. The gases oxygen and nitrogen have a uniform composition in nitrox, which makes it a homogeneous mixture. 3.4: Classifying Matter According to Its Composition <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Se 5680 J absorbed 2. lithium 4. - Density: 10.5g/mL Chromium is a steel-gray solid. 5. located in Group 8A (18) Explore the particle size of heterogeneous mixtures and whether they can be separated. 2. -particles that move very fast Salt and pepper form a heterogeneous mixture. Selenium 3. Explain. 1. contains C, N, and O Explain. b. Tamang sagot sa tanong: Write the word Homogeneous if the sample belongs to homogeneous and the word Heterogeneous if it is belongs to heterogenous. Explain. What is similar and what is different for 1s, 2s, and 3s orbitals? (Take the masses of the proton and neutron to be the same.). Ice cubes in cola form a heterogeneous mixture. branealvinomegaalpha Answer: Homogeneous mixture Explanation: - a nucleus, located in the center of the atom, that 4. . Do homogeneous mixture have phases? While a complete elemental name can be writtenwith its first letter being either capitalized or lower-case, the first letter in an elemental symbolmustbe capitalized, and any additional lettersmustbe lower-case. How many kilojoules did the swimmer expend? 4. will explode in the presence of hydrogen If the temperature drops to -11 C, what is it in degrees Fahrenheit? 3. kilocalories to heat 150 g of water from 15 C to 77 C The heat is calculated for each step separately and then added together to find the total energy. 2. Concrete is a heterogeneous mixture of an aggregate: cement, and water. In a heterogeneous mixture the substances are not evenly distributed (chocolate chip cookies, pizza, rocks) 3.5 kcal Salt and pepper form a heterogeneous mixture. Is each of the following statements true or false? Is ice classified as an element, a compound, a homogeneous mixture, or a heterogeneous mixture? are atoms of the same element that have the same atomic number but different numbers of neutrons. Mixtures: Mixtures can be a combination of elements,. Explain. As no additional capital letters are present, this chemical consists of only one elemental symbol and, therefore, is a single element (cobalt). A chocolate chip cookie, on the other hand, is a cookie with bits and pieces of chocolate spread out in the cookie. Is aluminum classified as an element, a compound, a homogeneous mixture, or a heterogeneous mixture? Both of these chemicals contain two hydrogens, but exchanging the oxygen for a sulfur results in a chemical that behaves very differently. A heterogeneous mixture is : made of different substances that remain physically separate (General Chemistry Online). Salt and pepper form a heterogeneous mixture. Salt and pepper form a heterogeneous mixture. Chocolate chip cookies are a heterogeneous mixture. Explain. Examples of heterogeneous mixtures include sand, oil and water, and chicken noodle soup. Copper is an element, which is a pure substance. f. styrofoam. Is gasoline a homogeneous mixture or a heterogeneous mixture? 2. to heat 38.0 g of copper from 122 C to 246 C 1. has the smallest mass 3. 2. sulfur which is the total number of protons and neutrons in its nucleus. Chocolate chip cookies are a heterogeneous mixture. A mixture contains two or more substances. What are the examples of homogeneous? d) Electrons are much lighter than neutrons, Which of the following elements is an alkaline earth metal? There is a maximum of 32 electrons in the n=4 energy level. Compound 4.5 kJ to cal, 1. 2. Explain. 2. A homogeneous mixture is a mixture in which the composition is uniform throughout the mixture. Mixtures | Pathways to Chemistry If the same amount of heat is supplied to samples of 10.0 g each of aluminum, iron, and copper, all at 15.0 C, which sample would reach the highest temperature? Mixture, A dietitian includes one of the following mixtures in the lunch menu. 3. electron 7. boron What is an example of a Heterogeneous mixture? 2. kilocalories, For dinner, Charles had one cup of clam chowder, which contains 16 g of carbohydrate, 12 g of fat, and 9 g of protein. oxygen =O 2. kilocalories released when 15.0 g of steam condenses at 100 C and the liquid cools to 0 C There will be uneven amounts of dough to chocolate. Concrete is a heterogeneous mixture of an aggregate: cement, and water. Describe an example of a homogeneous and heterogeneous mixture. Copper has the lowest specific heat of the samples and will reach the highest temperature. Explain. - Are shiny solids How can you tell just by looking if a mixture is most likely homogeneous or heterogeneous? The particles within a liquid have enough energy to overcome their attractive forces and become a gas. -On the periodic table, the atomic mass is the number including decimal places that is given below the symbol of each element, To calculate the atomic mass of an element, we need to know the percentage abundance and the mass of each isotope, which must be determined experimentally, Completely understand image 4.9 from chapter 4.6, Indicate the type and number of orbitals in each of the following energy levels or sublevels: I - Alkali metals react vigorously with water and form white products when they combine with oxygen. True or False: Physical processes can be used to separate mixtures because there are no chemical interactions between the components. 4. Is water classified as an element, a compound, a homogeneous mixture, or a heterogeneous mixture? 1. If the temperature of a liquid is lowered, and kinetic energy is lost, the particles slow down, and attractive forces pull the particles close together. lithium, He=helium Classify a substanceas an element, a compound, a homogeneous mixture, or a heterogeneous mixture. How many kilojoules of heat are needed? 5. hydrogen Is a carbonated beverage an example of a heterogeneous or homogenous mixture? Is the energy that must be added to convert exactly 1 g of solid to liquid at the melting point. Chlorine The n=2 energy level consists of one 2s and three 2p orbitals. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Sugar and sand form a heterogeneous mixture. HETEROGENEOUS MIXTURES A heterogeneous mixture consists of visibly different substances or phases. Since the "l" is lower-case, it must be the second letter of that second elemental symbol, Cl (chlorine). No, chocolate pudding is not a pure substance. d. Physical. boiling d) B, What period is Ca in? Classify each of the following pure substances as an element or a compound. While many elemental names are short and (relatively) easy to spell, some, like "praseodymium" or "darmstadtium" are quite long and complex. the components do not have a uniform composition throughout the sample. a. Alcohol43. There are nine orbitals in the n=3 energy level. 2. -particles that are far apart. When 1.0 g of glucose is metabolized in the body, it produces 3900 cal. In a sauna, 122 g of water is converted to steam at 100 C. The reason that chocolate pudding is not considered a pure substance even though it looks the same from every angle is that chocolate pudding is made up of many ingredients. In a homogenous mixture all the substances are evenly distributed throughout the mixture (salt water, air, blood). c) Mg 3. Chemistry Link to Health: Elements carbon Ice bags are used by sports trainers to treat muscle injuries. 2. number of neutrons in an atom A homogeneous mixture appears uniform, regardless of where you sample it. In what phase(s) are homogeneous and heterogeneous mixtures? -same shape as their container 1. carbonated soft drink (w/ bubbles) heterogeneous 9. air (with smog) heterogeneous 2. chocolate chip ice cream heterogeneous 10. paint homogeneous 3. Is cake batter classified as a pure substance (element or compound) or a mixture? All other trademarks and copyrights are the property of their respective owners. Heterogeneous Mixtures: When two or more substances and mechanically mixed, they form a type of mixture whose. 1. calories to heat 8.5 g of water from 15 C to 36 C Because the heat of vaporization is greater than the heat of fusion what is illustrated to show this on the heating curve? -valence electrons occupy the s and p sublevels with the highest principal quantum number n. of an atom is determined by the distance of the valence electrons from the nucleus. Ice cubes in cola form a heterogeneous mixture. Is soil classified as an element, a compound, a homogeneous mixture, or a heterogeneous mixture? 4. 3. metal - They typically have low melting points and low densities. Pure Substance 4. A mixture is a blend of two or more elements or compounds, which have theirown identities and properties. 4. a skier at the top of a hill, 1. -fouroxygen, carbon, hydrogen, and nitrogenmake up ), kilocalories: 210 kcal Is sweetened tea a pure substance, a homogeneous mixture, or a heterogeneous mixture? gas, Calculate the heat change at 100 C for each of the following, and indicate whether heat was absorbed/released: Explain. Explain. The low specific heats of aluminum and copper mean they transfer heat efficiently, Use the heat equation to calculate the energy for each of the following (see Table 3.11): Explain. Answered step-by-step Problem 13 Easy Difficulty Classify each of the following as a pure substance or a mixture. How many joules are produced? The first bite of the cookies is the same in just about every way, all the way to the end of the cookies. Chocolate Chips + ice cream = a heterogeneous mixture. 3. 4. kilojoules to heat 175 g of copper from 28 C to 188 C, 1. Classifying Matter By Composition - Video You aren't able to separate the ingredients in the sauce or the dough. This problem has been solved! 3. fruit salad Homogenous and Heterogenous Mixtures - Course Hero 3p sublevel endobj a proton and an electron = no 6. Is a bucket of rocks and sand an example of a heterogeneous or homogenous mixture? How much heat, in kilojoules, is absorbed to melt the ice and raise the temperature of the water to body temperature, 37.0 C? In most technical applications homogeneous means that the properties of a system are the uniform throughout the entire system; heterogeneous (also inhomogeneous) means that the properties change within the system. Determine whether each of the following is homogeneous or. 4. Pure Substance a. for a particular isotope that indicates the mass number in the upper left corner and the atomic number in the lower left corner. Classify each of the following substances as an element, a compound, a homogeneous mixture, or a heterogeneous mixture. Condensation, Using the values for the heat of fusion, specific heat of water, and/or heat of vaporization, calculate the amount of heat energy in each of the following: Chocolate chip cookies are a heterogeneous mixture. Solved Classify each of the following mixtures as | Chegg.com homogenized milk Explain. -strong attractive forces hold the particles close together. tin =Sn Chocolate chips are made up of multiple blocks, which is why it is not a pure substance. chemical reaction. 3 0 obj 3 b 4 g 5 d 6 c 7 e mixture heterogeneous homogeneous jello cherry jello with bananas plain cherry jello ice cream rocky road plain vanilla, associated to classifying matter worksheet answers key this short article describes best ways to answer appropriately questions on yahoo responses and produce profits for you 1 / 11 If the composition of a material is not completely uniform, then it is heterogeneous (e.g., chocolate chip cookie dough, blue cheese, and dirt). Ice crystals form on a package of frozen corn. 4. Homogeneous and Heterogeneous Mixtures The physical combination of two or more components is called a mixture. 4. zinc (Zn) coffee (black) a. a heterogeneous mixture b. a suspension c. a solution d. an element, Which statement describes KCl(aq)? The salt water described above is homogeneous because the dissolved salt is evenly distributed throughout the entire salt water sample. 4. Fruit salad42. You may get different numbers of chocolate chips with each bite. Salt and pepper form a heterogeneous mixture. There is one sublevel in the n=1 energy level. (a) Air (b) Blood (c) Carbonated soda (d) Trail mix (e) Chocolate chip cookies. sulfur = S Lava flows into the ocean and steam forms. In chocolate chip cookies, the mixture is not evenly distributed. d. wood. Chocolate chip cookies a homogeneous or heterogeneous mixture? Explain. 3. 31 Cents (a quarter, a nickel, and a penny), Sucrose,which is commonly-known as "table sugar" (C. 4. - Gain electrons during a chemical change, - They are better conductors of heat and electricity than the nonmetals, but not as good as the metals. Chocolate chip cookies it is a Homogeneous mixture or Heterogeneous mixture? Answer a: Heterogeneous Every spoonful of the cereal is different; it will contain a different amount of certain oat and marshmallow shapes. 3. endobj Is coffee classified as an element, a compound, a homogeneous mixture, or a heterogeneous mixture? Is sugar water classified as an element, a compound, a homogeneous mixture, or a heterogeneous mixture? There are two main categories of mixtures: homogeneous mixtures and heterogeneous mixtures. Separating Mixtures Techniques & Filtration - Study.com 4. Calculate the energy required to keep the light bulb burning for 3.0 h in each of the following energy units: - The atomic number is the whole number that appears above the symbol of each element on the periodic table. A proton and an electron have opposite charges. chocolate cake homogeneous or heterogeneous - Brainly.ph c) 2 is the energy associated with the motion of particles. Salt and pepper form a heterogeneous mixture. Electrons repel each other. 4. Chocolate chip cookies are a heterogeneous mixture. c. A log is cut for firewood. Potential, Convert each of the following energy units: a car speeding down the freeway a) all matter is made up of small pieces called atoms 3. oxygen gas (O2) 5. iron 2.1: Classifications of Matter - Chemistry LibreTexts Is a chocolate chip cookie an example of a heterogeneous or homogenous mixture? Sulfur Explain the difference between an element and a compound. c. bronze. 1. 4. Explain. Soda is considered a heterogeneous mixture. The particles on the surface of a solid change directly to a gas without going through the liquid state. 6. What is it called when a substance cannot be broken down into simpler substances? Can heterogeneous mixtures be separated? Explained by Sharing Culture calcium Al Co. - soft, shiny metals 2. hydrogen peroxide (H2O2) 2. 2. 4. is electrically neutral, 1. electron human body. - Are tiny particles of matter. Classify each of the following pure substances as an element or a compound: In the process of making ice cream, rock salt is added to crushed ice to chill the ice cream mixture. Thus, the chocolate chip cookie is an example of heterogeneous mixture. The halogens, especially fluorine and chlorine, are highly reactive and form compounds with most of the elements. In a heterogeneous mixture, there are two or more components that are not equal throughout. Explain. an electron and a neutron, atomic number = number of protons a. homogeneous mixture b. heterogeneous mixture c. element d. compound. 246 K -25C to C, the energy in your food = potential energy Cd =cadmium
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