The dough itself will not be uniform. Rutherford determined that an atom contains a small, compact nucleus that is positively charged. This problem has been solved! This image also includes simple "yes-or-no" tests that can be used to help distinguish a pure substance from a mixture, an element from a compound, and a homogeneous mixture from a heterogeneous mixture. 4. Ice bags are used by sports trainers to treat muscle injuries. -Metallic character is more prevalent in the elements on the left side of the periodic table (metals) and decreases going from left to right across a period, MRI SEQUENCE PARAMETERS AND OPTIONS REVIEW QU. 1. contains C, N, and O True or False: Physical processes can be used to separate mixtures because there are no chemical interactions between the components. All other trademarks and copyrights are the property of their respective owners. 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. What is meant by homogeneous or heterogeneous? Explain. There is a maximum of 10 electrons in the 5d sublevel. How would you separate Fe3+ from Ba2+ in a mixture? Which of the following best describes the substance XeF_4? 2. proton The mixture is homogeneous because if several samples were taken, each sample would contain both salt and water in the same relative ratio, making every sample "equally salty. 2. Would you use the atomic number, mass number, or both to determine each of the following? 2. Chocolate chip cookie dough ice cream is definitely a heterogeneous mixture. A compound is different from a mixture, give an example of a gas mixture. Both of these chemicals contain two hydrogens, but exchanging the oxygen for a sulfur results in a chemical that behaves very differently. 5. Calculate the energy required to keep the light bulb burning for 3.0 h in each of the following energy units: Freezing There is a maximum of 32 electrons in the n=4 energy level. Coffee is freeze-dried. 2. 4. 3. has a pale, yellow color How would you classify the following material? If you were to sample the chocolate in any given place, the appearance, consistency, and composition would be the same. 4. a. a gold ring b. salt water c. granite d. sucrose. 2. 1. calcium Explain. 1. has the smallest mass bubbly champagne, Neon is a colorless gas at room temperature = physical These seemingly-mismatched elemental symbols actually correspond to a Greek or Latin word that can be used to describe the element. Co, 1. calcium 20p, 20e (Hint: The solution will require three energy calculations.). 2. 3. Nitrox, a combination of oxygen and nitrogen used to fill scuba tanks. 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. 6. nonmetal Give examples of each. 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. 5. methane (CH4) in natural gas, 1. 4. What physical properties could be used to separate the components of the following mixtures? A heterogeneous mixture is : made of different substances that remain physically separate (General Chemistry Online). What is the definition of a mixture? ignites spontaneously in air when finely divided= chemical, Describe each property of the element zirconium as physical or chemical two electrons These individual components are uniformly blended with one another, so every"sample"taken when drinking a glass of wine would have the same color, aroma, and flavor. 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 is also a pure substance, but it consists of atoms of two or more elements always chemically combined in the same proportion. 2. Wet clothes dry on a clothesline. Explain. A homogeneous mixture is a solid, liquid, or gaseous mixture that has the same proportions of its components throughout any given sample. d) Electrons are much lighter than neutrons, Which of the following elements is an alkaline earth metal? 3. Deposition, Calculate the heat change at 0 C for each of the following, and indicate whether heat was absorbed/released: Mixture A heterogeneous mixture contains particles of different shapes or sizes and the composition of one sample may differ from that of another sample. 2. Explain. Se After a session of using weights, he has a sore arm. Group 8A (18) 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. -regulation of cellular metabolism. It contains water, sugar, and carbon dioxide, which forms bubbles. 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? Classify each of the following mixtures as homogeneous or heterogeneous: 1. A tossed salad is a heterogeneous mixture. 3. ice (H2O) Is the energy that must be added to convert exactly 1 g of solid to liquid at the melting point. The halogens, especially fluorine and chlorine, are highly reactive and form compounds with most of the elements. A chocolate-chip cookie does not have a uniform composition, which makes it a heterogeneous mixture. 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 2. 4. stream 1. What is an example of a Heterogeneous mixture? Sulfur 3. kilocalories to condense 8.0 kg of steam A mouthwash used to reduce plaque and clean gums and teeth contains several ingredients, such as menthol, alcohol, hydrogen peroxide, and a flavoring. b) the number of protons A) heterogeneous mixture B) compound C) homogenous mixture D) element. How many kilojoules of heat are needed? 5. Explain. Chromium is a steel-gray solid. lithium = Li, Write the symbol for the following elements: For example, water (H2O) is used to extinguish fires, but dihydrogen sulfide (H2S) is highly flammable! Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org. <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 3p sublevel A heterogeneous mixture consists of two or more phases. Sugar and sand form a heterogeneous mixture. Gold is hammered into thin sheets You aren't able to separate the ingredients in the sauce or the dough. Mn Advertisement Advertisement The derivation of chemical formulas and chemical names will be the focus of the following chapter. c) Cu 1. 7. mass number - atomic number, Carbon 6p, 6e What is completely flat soda an example of? bubbly champagne = Heterogenous, Classify each of the following mixtures as homogeneous or heterogeneous: Is marble classified as an element, a compound, a homogeneous mixture, or a heterogeneous mixture? 4. -particles that are far apart. 2. 2. 2. The type of mixture chocolate is depends on the chocolate. is resistant to corrosion = chemical 1. joules 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. Since two elements are present, this is a compound (carbon monoxide). Describe each of the following as a physical or chemical property: 3. number of particles in the nucleus 3. lost when 15.0 g of ethanol, C2H6O, cools from 60.5 C to 42.0C A heterogeneous mixture consists of visibly different substances or phases. b) energy cannot be created or destroyed What makes the following two mixtures different? He Chocolate chips are made up of multiple blocks, which is why it is not a pure substance. - are extremely tiny particles that make up each type of matter. -A liquid changes to a solid at the freezing point (fp), which is the same temperature as its melting point: 0 C. A mixture is a blend of two or more elements or compounds, which have theirown identities and properties. 3500 cal to kcal 120 J The 4d sublevel contains five 4d orbitals. Group 2A (2), Period 4 Chemical, Describe each of the following properties for the element fluorine as physical or chemical: Carbon is an element that is essential to life on earth, as it is found in all living systems. Charles has increased his activity by doing more exercise. Lemonade has a definite volume but takes the shape of its container. Ice crystals form on a package of frozen corn. Accept any reasonable answer. Ahomogeneous mixturehas a uniform composition, meaning that if several samples are taken, each would contain the same chemicals in approximately the same ratio. 9.3 kcal tin =Sn Is sulfuric acid classified as an element, a compound, a homogeneous mixture, or a heterogeneous mixture? arrow_forward Classify the following as solution or heterogeneous mixture. To convert from degrees Fahrenheit to degrees Celsius? (Take the masses of the proton and neutron to be the same.). HETEROGENEOUS MIXTURES A heterogeneous mixture consists of visibly different substances or phases. a) F -same shape as their container 3. is found outside the nucleus -Condensation occurs at the same temperature as boiling. Pure substances can be categorized as either elements or compounds. Gas bubbles form when baking powder is placed in vinegar. Chocolate chip cookies 2. Why a suspension is considered a heterogeneous mixture? In a sauna, 122 g of water is converted to steam at 100 C. 7. boron 2. A patient receives 3.2 L of intravenous (IV) glucose solution. 4. has a grayish-white color = physical 5. The components are not evenly and uniformly mixed so they remain distinguishable from each other. They are quite unreactive and are seldom found in combination with other elements. d. Homogeneous mixture. A silver pin tarnishes in the air The first step to answering this question is to understand what a pure substance is, scientifically and chemically. B) A compound can be physically separated into its components; a mixture cannot be physically separ. Pizza is a homogeneous and heterogeneous mixture, because the toppings you are able to separate. 7. Chocolate cake homogeneous or heterogeneous ogogogg Answer: Its a homogenous mixture Explanation: iamnotexisting Answer:Heterogeneous Mixture Explanation: A heterogeneous mixture is a mixture consists of two or more phases. gas, Calculate the heat change at 100 C for each of the following, and indicate whether heat was absorbed/released: Chocolate chip cookies are a heterogeneous mixture. Butane gas in an igniter burns in oxygen. 18.5 C 2. hydrogen peroxide (H2O2) Explore the particle size of heterogeneous mixtures and whether they can be separated. 3. Changing either the elements that are present or their ratio changes the identity of the compound and, therefore, itsproperties. Group 4A (14), Period 2 Identify each of the following as describing either a proton, a neutron, or an electron: carries a negative charge = electron, Decide if it is a proton, neutron, or electron described in each of the following: Chocolate chip cookies are a heterogeneous mixture. The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. -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. b. carbonated beverage. How many kilojoules did the swimmer expend? The particles on the surface of a solid change directly to a gas without going through the liquid state. 2. nonmetal two protons Air is made up of several gases in different amounts. See Answer Zn Sugar solution37. - Melting point: 962 Celsius 3. contains protons and neutrons and represents most of The difference between homogeneous and heterogeneous is whether not the composition and appearance of the substance is consistent throughout. 1. water at the top of a waterfall Physical 180 cal Note that chemical names consist of words that resemble elemental names, and chemical formulas contain elemental symbols. Halo-halo44. At room temperature, mercury is a liquid, Gold is hammered into thin sheets = physical d) 3, What element has an atomic number of 12? - good conductors of heat and electricity . 1. mass number - atomic number = number of neutrons, What do you know about the subatomic particles from the following? 2. joules to melt 17.0 g of ice By contrast, a mixture that is uniform in composition is a homogenous mixture. for a substance is defined as the amount of heat needed to raise the temperature of exactly 1 g of a substance by exactly 1 C. Physical Think about all the sugar, oil, milk, and cocoa (which comes from the cacao bean) that are need to make chocolate. 4. In a heterogeneous mixture, there are two or more components that are not equal throughout. 1. d) B, What period is Ca in? 5. nucleus. Is well-stirred hot chocolate a colloid, a suspension, or a solution? Pure Substance Copper has the lowest specific heat of the samples and will reach the highest temperature. Classify each of the following mixtures as being homogeneous or heterogeneous. 3. Chocolate chip ice cream is a heterogeneous mixture. Physical Explain. c) density is mass/volume oxygen =O Chocolate chip cookies it is a Homogeneous mixture or Heterogeneous mixture? 3780 J, 904 cal a) 1 Li Heterogeneous mixture. JoVE publishes peer-reviewed scientific video protocols to accelerate biological, medical, chemical and physical research. chemical changes. c) the number of neutrons, Which of the following has a higher ionization energy? A) The components of a mixture do not have the same properties individually as they do when mixed. - Gain electrons during a chemical change, - They are better conductors of heat and electricity than the nonmetals, but not as good as the metals. Bubbles are carbon dioxide. At a temperature called the melting point (mp)? Explain. 4. Classify each of the following as a physical or chemical change: 2. joules to vaporize 5.00 g of water Under what conditions is an acetanilide/water mixture a solution or a heterogeneous mixture? Choose the homogeneous mixture from the list below. . -atomic size increases going from the top to the bottom because the outermost electrons in each energy level are farther from the nucleus. liquid Suggest a way to determine whether a colorless liquid is pure water or a salt solution without tasting it. b) B C Is isopropyl alcohol a heterogeneous or homogeneous mixture? What is a mixture? 8. metal, Give the symbol of the element described by each of the following: Classify each of the following substances as an element, a compound, a homogeneous mixture, or a heterogeneous mixture. \\ A. Homogeneous and heterogeneous mixtures B. Salt and pepper form a heterogeneous mixture. 2. tea Is ice classified as an element, a compound, a homogeneous mixture, or a heterogeneous mixture? 8. silver, 1. metal 16.7 kJ released, Draw a heating curve for a sample of ice that is heated from 20C Fruit salad42. Period 2 Atoms are never created or destroyed during a chemical Co. - soft, shiny metals How can you separate components in a mixture? The components appear as two separate regions, Classify each of the following as a pure substance (element or compound) or a mixture (homogeneous or heterogeneous): which are the electrons in the outermost energy level What are the examples of homogeneous? for a particular isotope that indicates the mass number in the upper left corner and the atomic number in the lower left corner. Since the "l" is lower-case, it must be the second letter of that second elemental symbol, Cl (chlorine). Is this a homogeneous or heterogeneous mixture? 5. 4. An ice bag is filled with 125 g of ice at 0 C. What is a heterogeneous mixture? d) electrons orbit the nucleus Explanation:The capitalization ofletters within a chemical formula can be used to divide that formula into unique elemental symbols. 4. Explain. Explain. is resistant to corrosion are atoms of the same element that have the same atomic number but different numbers of neutrons. (a) baby oil (b) chocolate chip cookie (c) water and gasoline (d) wine Question Classify each mixture as homogeneous or heterogeneous. the components do not have a uniform composition throughout the sample. Compound b) S There are two main categories of mixtures: homogeneous mixtures and heterogeneous mixtures. 62C=K Any system with two phases . c. bronze. At room temperature, mercury is a liquid = physical, Describe each of the following as a physical or chemical property: Chemical True or False: The faster the particles move, the greater the heat or thermal energy of the substance? 4. Describe the ability of a substance to change into a new substance. No, chocolate pudding is not a pure substance. 1. baking soda (NaHCO3) Indicate the segment of the graph that corresponds to each of the following: Chocolate chip cookies are a heterogeneous mixture. Explain. - Are rearranged to form new combinations in a Each portion of the heterogeneous mixture may have a different ratio of the components in it. Check out our science hub page for our latest articles answering your questions. 3. Is gold classified as an element, a compound, a homogeneous mixture, or a heterogeneous mixture? 2. joules lost when 25 g of water cools from 86 C to 61 C Hydrogen reacts readily with oxygen. 3. kilocalories to heat 150 g of water from 15 C to 77 C Give an example of a homogeneous mixture. 3. Classify each of the following as a physical or chemical change: The alkaline earth metals are shiny metals like those in Group 1A (1), but they are not as reactive. 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. d. Butter melts in a warm room. S Which of the following is a heterogeneous mixture? Group 1A (1) 3. Carbon 3. - Elements are pure substances from which all other things are built. 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. Evaporation In a heterogeneous mixture the substances are not evenly distributed (chocolate chip cookies, pizza, rocks) Ca is found in the larger part of the atom= electron 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. Compounds cannot be classified in this way. Explain the difference between a homogeneous mixture and a heterogeneous mixture. 396 kJ released. (a) baby oil (b) chocolate chip cookie (c) water and gasoline (d) wine Classify each mixture as homogeneous or heterogeneous. 5. Determine whether each of the following is homogeneous or. melts at 1852C Explain. They have the same appearance and . Ba Explanation:The vegetables present in a vegetable soup are not uniformly-distributed. a proton and an electron = no solid -most of our hydrogen and oxygen is found as water, which Mixture components can be solids, liquids, or gasses that retain their. Answer b: Element Physical -For water, 540 cal (2260 J) is needed to convert 1 g of water to vapor at 100 C. reaction. If 100. mL of the solution contains 5.0 g of glucose (carbohydrate), how many kilocalories did the patient obtain from the glucose solution? Salt and pepper form a heterogeneous mixture. 1100 cal, The energy needed to keep a 75-watt light bulb burning for 1.0 h is 270 kJ. 4. 3. No, chocolate is not considered a pure substance. Concrete is a heterogeneous mixture of an aggregate: cement, and water. 3. orbitals in the 6s sublevel One example of a mixture is air. a) the number of electrons Compound -They tend to lose electrons when they undergo Whether a mixture is heterogeneous or . 5. A mixture is a material which contains more than one substance. 5. Sugar and sand form a heterogeneous mixture. A tree is cut into boards at a sawmill = physical Pizza is a homogeneous and heterogeneous mixture, because the toppings you are able to separate. Concrete is a heterogeneous mixture of an aggregate: cement, and water. 2. Chlorine 2. n=2 Explain. 4. Classify the following as a homogeneous mixture or heterogeneous mixture: A tablespoon of instant ice tea dissolved in water. 7. metalloid -Adding the same amount of heat (1.00 cal or 4.184 J) will raise the temperature of 1 g of aluminum by about 5 C and 1 g of copper by about 10 C. Indicate the number of each in the following: What is the difference between homogeneous and heterogeneous mixtures? A (n) element is a pure substance that is made of only one kind . Chocolate chip cookies are a heterogeneous mixture. 3. There are five orbitals in the 3d sublevel. 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. The ice and the soda are two distinct phases of matter (solid and liquid). is an element that loses valence electrons easily - Density: 10.5g/mL A homogeneous mixture has the same uniform appearance and composition throughout. What is a homogeneous mixture? Show that the nuclear density is the same for all nuclei. Your friend who is visiting from Canada just took her temperature. Whats the Temperature equation that relates a Fahrenheit temperature and its corresponding Celsius temperature? 3. You aren't able to separate the ingredients in the sauce or the dough. There is a maximum of two electrons in a 2p orbital. A peanut butter cookie is a decent example of what might be considered a homogeneous mixture, assuming you dont add nuts to it. Baby oil appears to be uniformed, the molecular level, so it's homogeneous chocolate chip cookies, definitely not uniformed. a proton and an electron 3. a shiny element Explain. There are nine orbitals in the n=3 energy level. a tightly wound spring 4. Shampoo. 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): The nucleus contains most of the mass of an atom. How can you tell, if a liquid is a compound and not a homogenous substance? A bar of chocolate would be considered a mixture. Is the energy that must be added to convert exactly 1 g of liquid to gas at its boiling point. Explain. }bni~ET]NNl^5r}Go^3{e&G%`ir_v/oFI::F5+=cvXLT04uj0:>tnGB $Vr"1cc:j{IZKG*T,587FHG1!7jpLrc=.GK#lq3>Q0r+V%KBC#o@%PlYG8>b;W, |V2!54Fgq9Vq:Wo{W g92s~^_$kKR_P!! 3. 3. 4. has a mass about the same as a proton A heterogeneous mixture is simply any mixture that is not uniform in composition it's a non-uniform mixture of smaller constituent parts. at the top of a ski hill about to come down = potential energy, Indicate whether each item describes potential or kinetic energy: Zinc Explain. two or more different substances are physically mixed, but not chemically combined. Chocolate chip cookies are a heterogeneous mixture. What is it called when a substance cannot be broken down into simpler substances? Mixtures can be classified as either homogeneous or heterogeneous. 65.3F=C -fouroxygen, carbon, hydrogen, and nitrogenmake up What are some of the techniques by which mixtures can be resolved into their components? b. If you took one bite of a cookie, the bite should be the same as all the rest of the bites of the cookies. - Density: 2.1g/mL 4. will explode in the presence of hydrogen 3p sublevel There is one sublevel in the n=1 energy level. Explain. Compound, pure substance, mixture, and an element. Classify each of the following as homogeneous or heterogeneous: What are the examples of homogeneous? Sugar and sand form a heterogeneous mixture. Use examples if necessary. A chocolate-chip cookie does not have a uniform composition, which makes it a heterogeneous mixture. c) 3 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. ;:fercB{\'\ q1074~c<>)FYldeT. d) 4 2. the energy in your food Is soda with ice a homogeneous mixture or a heterogeneous mixture? Is each of the following statements true or false? boiling Chocolate chip cookies are a heterogeneous mixture. 1. is highly reactive 2. Science Chemistry Chemistry questions and answers Classify each of the following as an element compound, homogeneous mixture, or heterogeneous mixture. In the process of making ice cream, rock salt is added to crushed ice to chill the ice cream mixture. What is the difference between a homogenous and a heterogeneous mixture? Neon is a colorless gas at room temperature
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