Indicate whether each of the following describes a gas, a liquid, or a solid: Ahomogeneous mixturehas a uniform composition, meaning that if several samples are taken, each would contain the same chemicals in approximately the same ratio. is resistant to corrosion d. Homogeneous mixture. 3. Since the "l" is lower-case, it must be the second letter of that second elemental symbol, Cl (chlorine). What is the name given to the homogeneous substance that has the same properties of its components? Conversely, a heterogeneous mixture has components whose proportions vary throughout the sample. If you have straight chocolate, without any nuts or other ingredients which couldnt be spread out uniformly throughout the chocolate, wed call it a homogeneous mixture. Mixtures can be either homogeneous or heterogeneous': a mixture in which constituents are distributed uniformly is called homogeneous, such as salt in water, otherwise it is called heterogeneous, such as sand in water. Why not? again to identify something as homogeneous or heterogeneous, you need to know the definitions of homogeneous and heterogeneous and some properties of that substance. 2. 3. electron 1. number of protons in an atom P =phosphorus, Write the name of the element for each symbol: Explain. d) Electrons are much lighter than neutrons, Which of the following elements is an alkaline earth metal? Mixtures, which can be homogeneous or heterogeneous,can be separated into their individual components because the substances are not chemically-connected or bondedto one another. Explain. 2. 1. calcium What is the difference between the two. Identify each of the following as describing either a proton, a neutron, or an electron: -They tend to lose electrons when they undergo The salt water described above is homogeneous because the dissolved salt is evenly distributed throughout the entire salt water sample. Is water classified as an element, a compound, a homogeneous mixture, or a heterogeneous mixture? 5. iron 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? a tightly wound spring How many kilojoules did the swimmer expend? If 100. mL of the solution contains 5.0 g of glucose (carbohydrate), how many kilocalories did the patient obtain from the glucose solution? How can you tell just by looking if a mixture is most likely homogeneous or heterogeneous? 3. Chocolate chip cookie dough is a heterogeneous mixture. The 1s, 2s, and 3s orbitals are all spherical, but they increase in volume because the electron is most likely to be found farther from the nucleus for higher energy levels. 2. \\ A. Homogeneous and heterogeneous mixtures B. You can get bites without any chocolate. 3. ice (H2O) 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? %PDF-1.5
which is the total number of protons and neutrons in its nucleus. Compound, pure substance, mixture, and an element. Explain. 3. c) Electrons are attached to protons (a) Air (b) Blood (c) Carbonated soda (d) Trail mix (e) Chocolate chip cookies. The ice cream itself will not be uniform, as the dough bites will also be spread out unevenly throughout the material, even though ice cream makers work very hard to make sure that every bite of ice cream is as close as possible to the same. The particles of a solid gain sufficient energy to overcome the attractive forces that hold them together 3. homogenized milk A few simple examples will be mentioned here. 1. orbitals in the 3d sublevel P, has a mass about the same as a proton= neutron Ca Sugar solution37. Italian salad dressing heterogeneous 11. rubbing alcohol homogeneous 4. corn syrup homogeneous 12. full fat milk heterogeneous 5. soil heterogeneous 13. beach sand heterogeneous is matter that has a fixed or definite composition. A solution is a homogeneous mixture and, unlike a compound, has composition. 5. located in Group 8A (18) melting 5. Atomic # Explain Homogeneous catalysis and Heterogeneous catalysis. 2. has a 1+ charge A chocolate-chip cookie does not have a uniform composition, which makes it a heterogeneous mixture. - Melting point: 630 Celsius, Identify the group or period number described by each of the following: Concrete is a heterogeneous mixture of an aggregate: cement, and water. a. homogeneous mixture b. heterogeneous mixture c. element d. compound. A heterogeneous mixture is : made of different substances that remain physically separate (General Chemistry Online). 10.8 kJ, Use the heat equation to calculate the energy, in joules and calories, for each of the following (see Table 3.11): This problem has been solved! - Are tiny particles of matter. Is ice classified as an element, a compound, a homogeneous mixture, or a heterogeneous mixture? Explain. -maintenance of heart and blood vessels, muscle Mixture components can be solids, liquids, or gasses that retain their. . - Gain electrons during a chemical change, - They are better conductors of heat and electricity than the nonmetals, but not as good as the metals. In a heterogeneous mixture the substances are not evenly distributed (chocolate chip cookies, pizza, rocks) Concrete is a heterogeneous mixture of an aggregate: cement, and water. Your friend who is visiting from Canada just took her temperature. Which statement describes homogeneous mixtures? Give examples of an element, a compound, a heterogeneous mixture, and a homogeneous mixture. Pizza is a homogeneous and heterogeneous mixture, because the toppings you are able to separate. For this reason, it is not a pure substance. 2. number of neutrons in an atom Since the "a" is lower-case, it must be the second letter of the elemental symbol "Na" (sodium). Chocolate chip cookie dough ice cream is definitely a heterogeneous mixture. (Hint: The solution will require three energy calculations.). A heterogeneous mixture consists of two or more phases. a) 0 e) atomic numbers identify elements, What is the difference between two isotopes of an atom? 2. A patient receives 3.2 L of intravenous (IV) glucose solution. Would you use the atomic number, mass number, or both to determine each of the following? a proton and an electron Explain. 2. hydrogen peroxide (H2O2) d) B, What period is Ca in? a) all matter is made up of small pieces called atoms Which of the following is a heterogeneous mixture? 4. Explain. Explain. Takes place, the original substance is converted into one or more new substances, which have new physical and chemical properties. 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. Mass # (Round off the answer for each food type to the tens place. Accept any reasonable answer. 2. the noble gas in Period 1 - a nucleus, located in the center of the atom, that 4. Cobalt, Write the name for the symbol of each of the following elements found in the body: Answered step-by-step Problem 13 Easy Difficulty Classify each of the following as a pure substance or a mixture. Electrons repel each other. Sugar and sand form a heterogeneous mixture. 3. Zinc 7. tin 11300 J absorbed 4. ends with neon, 1. They are quite unreactive and are seldom found in combination with other elements. liquid No, chocolate pudding is not a pure substance. On the other hand, homogenous is a mixture too, but the elements are not. Is raisin bread classified as an element, a compound, a homogeneous mixture, or a heterogeneous mixture? Classify each of the following mixtures as homogeneous or heterogeneous: 1. Indicate the maximum number of electrons in the following: 3. Salt and pepper form a heterogeneous mixture. Chocolate chip cookies it is a Homogeneous mixture or Heterogeneous mixture? representative elements involved in (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. d) 4 Discover the definition of heterogeneous mixtures, as well as their types and examples. Chemical. The gases oxygen and nitrogen have a uniform composition in nitrox, which makes it a homogeneous mixture. (a) salt dissolved in water (b) tea and ice (c) chicken noodle soup (d) mud (e) gasoline (f ) carbon di, What is the difference between a compound and a mixture? Sublimation As it is falling, the ball possesses. a. Cd =cadmium Explain why a chlorinated swimming pool would be considered a homogenous mixture. - 80. cal (334 J) of heat is needed to melt exactly 1 g of ice at its melting point (0 C). A mixture is a blend of two or more elements or compounds, which have theirown identities and properties. It is the same everywhere. Salt and pepper form a heterogeneous mixture. 1. vegetable soup However, each of these "things" has its own distinct characteristics and, therefore, can be classified using more specific terminology. chocolate chip ice cream 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. -25C to C, the energy in your food = potential energy 3. - Are shiny solids After a session of using weights, he has a sore arm. 4. 1. 4. lost when 125 g of iron cools from 118 C to 55 C, 1. Ice cubes in cola form a heterogeneous mixture. Therefore, every elemental name has a corresponding abbreviation, called anelemental symbol. Both of these chemicals contain two hydrogens, but exchanging the oxygen for a sulfur results in a chemical that behaves very differently. Ice cubes in cola form a heterogeneous mixture. 4. manganese The abbreviation "Hg" is derived from the Greek word "hydrargyrum,"which means "liquid silver"- a phrase that accurately represents the appearance of mercury! There is a maximum of 32 electrons in the n=4 energy level. 3. lost when 15.0 g of ethanol, C2H6O, cools from 60.5 C to 42.0C 3. Is water and ice cubes a homogeneous or heterogeneous mixture? That building block could be an element (like gold), or it could be a compound (like H2O, which makes up water). Sugar and sand form a heterogeneous mixture. 6. nonmetal Explain the term heterogeneous nucleation. Indicate the number of each in the following: 96% of our body mass. Legal. We are obsessed with the outdoors, and work constantly to bring you the information you need to enjoy the rocks and minerals you've added to your collection. Calculate the energy required to keep the light bulb burning for 3.0 h in each of the following energy units: What is the difference between homogeneous and heterogeneous mixtures? Classify each of the following as homogeneous or heterogeneous: 4. Thus, the chocolate chip cookie is an example of heterogeneous mixture. Ice crystals form on a package of frozen corn. Ca 65.3F=C 3. Pure Substance Explain. lithium = Li, Write the symbol for the following elements: Is iron classified as an element, a compound, a homogeneous mixture, or a heterogeneous mixture? Chocolate chip cookies are a heterogeneous mixture. In this. Homogeneous mixtures can be solid, liquid, or gas. Is cereal and milk a homogeneous mixture or a heterogeneous mixture? 4. Chocolate chip cookies If you took one bite of a cookie, the bite should be the same as all the rest of the bites of the cookies. While it wouldnt be easy to separate the ingredients in chocolate, it could be done without a chemical reaction. Describe the ability of a substance to change into a new substance. Much like elements, each compound has a correspondingchemical name, which can be abbreviated using achemical formula. A chocolate chip would be considered a homogeneous mixture, assuming that there werent swirls or other materials mixed into it. 2. joules lost when 25 g of water cools from 86 C to 61 C - Elements are pure substances from which all other things are built. Apple slices turn brown when they are exposed to air = chemical coffee (black) a. a heterogeneous mixture b. a suspension c. a solution d. an element, Which statement describes KCl(aq)? 120 J bubbly champagne, Neon is a colorless gas at room temperature = physical 3. number of particles in the nucleus 4. 5. methane (CH4) in natural gas, 1. 3. has a pale, yellow color 2. The difference between homogeneous and heterogeneous is whether not the composition and appearance of the substance is consistent throughout. gas, Calculate the heat change at 100 C for each of the following, and indicate whether heat was absorbed/released: Homogeneous mixtures are mixtures in which the constituents don't appear separately. Explain. There are five orbitals in the 3d sublevel. . Often it is easy to confuse a homogeneous mixture with a pure substance because they are both uniform. 9.3 kcal Ammonia will corrode iron. 3. See Answer 4. zinc (Zn) 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): Heterogeneous Show that the nuclear density is the same for all nuclei. 4. kilojoules to freeze 50.0 g of water, 1. 8. sulfur the composition is uniform throughout the sample.We cannot see the individual components, which appear as one state. A homogeneous mixture appears uniform, regardless of where you sample it. What is the meaning of homogeneous and heterogeneous? A mixture contains two or more substances. A solution is known as a homogeneous mixture because its components are equal throughout. Water on the street turns to ice during a cold wintry night. Explain the difference between a pure substance and a mixture. Phosphorus will ignite when exposed to air = chemical Heterogeneous: 1)chocolate chip cookie 2)soup 3)earth 4)cookie dough ice cream 5)trail mix 18 Somesh Saurabh High school undergraduate Author has 117 answers and 745.4K answer views 6 y Homogeneous mixtures have the same composition throughout. Ar 18p, 22n, 18e, How many protons, neutrons, and electrons are present in each of the following neutral atoms? -The substance is melting, changing from a solid to a liquid. A heterogeneous mixture consists of visibly different substances or phases. Milk left in a warm room turns sour, 1. The nucleus contains most of the mass of an atom. - are extremely tiny particles that make up each type of matter. Salt and pepper form a heterogeneous mixture. 3. kilocalories to condense 8.0 kg of steam 3. chocolate chip ice cream = Heterogenous gasoline = Homogenous bubbly champagne = Heterogenous Classify each of the following mixtures as homogeneous or heterogeneous: homogenized milk chocolate chip ice cream gasoline bubbly champagne Neon is a colorless gas at room temperature = physical Explain. Salt and pepper form a heterogeneous mixture. Explain. Usually a chocolate chip is a simple piece of pure chocolate, meant for eating or mixing into another recipe. In chocolate chip cookies, the mixture is not evenly distributed. contains protons and neutrons and represents most of arrow_forward Classify the following as solution or heterogeneous mixture. A homogeneous solution tends to be identical, no matter how you sample it. Science Chemistry Chemistry questions and answers Classify each of the following as an element compound, homogeneous mixture, or heterogeneous mixture. 2. sulfur sulfur, Al 13p, 14n, 13e Period 2 Co, 1. solid In a sauna, 122 g of water is converted to steam at 100 C. are atoms of the same element that have the same atomic number but different numbers of neutrons. What are the examples of homogeneous? endobj
What makes the following two mixtures different? A tossed salad is a heterogeneous mixture. Determine whether each of the following is homogeneous or. Chemical 1. contains C, N, and O Find ARA_RAR and produce a matrix R\Omega_{R}R such that RA=AR.\Omega_{R} \mathbf{A}=\mathbf{A}_{R}.RA=AR. Describe an example of a homogeneous and heterogeneous mixture. Again, the elements are present in a one-to-one ratio, as neither elemental symbol has an explicitly-written subscript. . Deposition, Calculate the heat change at 0 C for each of the following, and indicate whether heat was absorbed/released: A chocolate chip cookie is an example of a (2 points) a homogeneous mixture b heterogeneous mixture c suspension d colloid 2 See answers Advertisement Advertisement jgcarlso jgcarlso Answer: I think it is heterogeneous mixture. 4. A chocolate chip cookie is a heterogeneous mixture, because it contains many different chemicals that form the cookie dough and the chocolate chips, which can be separated by pulling out the chips. How can you tell, if a liquid is a compound and not a homogenous substance? 3. a shiny element If no subscript is written, an unwritten "1" is understood, as was the case for several of the numerical quantities that were discussed in the previous chapter. Is soil classified as an element, a compound, a homogeneous mixture, or a heterogeneous mixture?
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