16 The best example of an element is – F oil G ice H water J oxygen 17 Which of the following chemical symbols best represents an element? A He B LiF с но D NaCI 18 Which of these data tables correctly classifies the given substances? F Substance Classification H Substance Classification NaCI compound NaCI element Si element Si element H,0 compound H,O compound G Substance Classification Substance Classification NaCI element NaCI compound Si element Si compound H,O element compound

Q: Experiments were done on a certain pure substance X to determine some of its properties. There's a…

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Q: Propane gas (C3H8), has a boiling point of -42.0oC and ignites in the presence of oxygen. Do these…

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Q: The space between particles within a substance depends on the state of the matter. Which list ranks…

A: generally compounds exist in 3 states Solids Liquids Gas

Q: Aspirin is composed of 60.0% carbon, 4.5% hydrogen, and35.5% oxygen by mass, regardless of its…

A: Given compound is aspirin.  It is said to contain 60.0 % carbon, 4.5 % hydrogen and 35.5 % oxygen.

Q: Classify each substance by composition, first as a mixture (MX) or a pure substance (PS): zinc…

A: Zinc - pure substance  Toothpaste - mixture Corn oil - pure substance  Smog - mixture

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A: In this question we have to convert the unit of speed.

Q: Which of the following are SI units of force and volume, respectively? O g-cm?/s, mL O kg-m/s, L O…

A: SI is the international system of units. It is a scientific method of expressing the magnitudes of…

Q: 24- Of the following propositions the one that illustrates a chemical property is:Unique option.…

A: Chemical property :-  A property of the substance which involve the formation of a new substance by…

Q: property? Extensive properties defin quantity. Intensive properties define unique characteristics…

A: 16-B 17-B 18-I

Q: 3. A pinch of bread was placed inside a test tube and heated until it became blackish D. Both…

A: 3. On heating bread forms black precipitate and release a gas.

Q: Which of the following is 5? 2P Unit Symbol Quantity Length meter Mass klogram Time second…

A: Luminous intensity

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Q: A student performed an experiment to determine the percent water in a sample of food and collected…

A: Given: Mass of empty watch glass = 43.5245 g Mass of watch glass and undried food = 50.6270 g Mass…

Q: its to compare the properties of two substances. In doing it, he prepare two flasks containing the…

A: As per our guidelines we can only solve first question. Please resubmit the other questions as next…

Q: Question 4

A: Compound is defined as a chemical species in which two or more elements are bonded together through…

Q: 14. A researcher finds that a solid has high melting and boiling points, and is soluble in water.…

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Q: Four graduated cylinders each contain a different liquid: A, B, C, and D.Liquid A: mass = 18.5 g;…

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Q: 1. Any sample of matter has mass and takes up space. The main reason for this is because: * a. All…

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Q: Jse the representations shown below to determine which processes represent chemical and physical…

A: From given Initially brief explanation of physical and chemical change is given and then the given…

Q: Which substance can be separated by filtration?  A. Compound B. Element C. Mixture D. Solution

A: Matter exhibits two types of property:  Physical and chemical

Q: Classifaction

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Q: 10. The following is a homogeneous mixture A. 70% isopropyl alcohol B. 100% isopropyl alcohol CES…

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Q: Which is of the following is an example of a physical property? A) lead forming lead oxide in the…

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Q: Question 3

A: The intermolecular distances between the gas particles are greater. Gas has no definite shape or…

Q: For each picture (A-E), list ALL descriptions that apply to the sample of matter. DESCRIPTION A B D…

A: A

Q: (a) Three spheres of equal size are composed of aluminum(density = 2.70 g/cm3), silver (1density =…

A: a. We are given the following densities as: Density of alluminium = 2.7 g/cm3 Density of nickel =…

Q: cm3. A piece of aluminum has a mass of 75.2 grams. What is the volume (in ml) for the (Note: The…

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Q: Classify the following as either pure substances or mixtures. If it is a pure substance, state…

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Q: Classification and Properties of Matter(Sections 1.2 and 1.3)1.13 Classify each of the following as…

A: The following compounds have to classified as a pure substance or mixture.

Q: A sample of potassium (K on the periodic table) can be classified as what type of matter?…

A: Potassium is metal element and it's release one single electron very easily because after releasing…

Q: Match the correct word with the description. v Blood is an example of element. A. v Air is an…

A: Elements are those substances which contain the same atoms with same number of protons while…

Q: Photographs are taken of falling drops of two different liquids: wind wind Liquid A Liquid B Note:…

A: The shape of the liquid drop is due to the surface tension and this physical property depend upon…

Q: 1. Which of the following is NOT an example of physical property? B. Length A. Texture C. Intensity…

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Q: Mass divided by volume is the forula for which physical property? a. Weight b. Density Conductivity…

A: Note: As per our guidelines, we are supposed to answer only three subparts when multiple subpart…

Q: 22) The scientific method involves various techniques which allow researchers to investigate…

A: Experimentation is the process  of doing an experiment.  Observations is the process of following…

Q: he following picture is a representation of what type of matter? a mixture of compounds an element O…

A: Note: You have uploaded two different questions at one time. But I am solving only first question…

Q: Which of the lower ones is not correctly recognized for a physical property? A) The ability of a…

A: Answer - Physical properties - Physical properties can be observed or measured without changing the…

Q: ax puts cereal in a bowl and pours milk over it. Which term best describes Max's bowl of cereal? O…

A: Mixture - When two or more substances mix without any proportion, it is known as a mixture.

Q: 7. A student combines pure NaCl (sodium chloride) with pure DI water. The resulting is an example…

A: Given process,            Mixing of pure NaCl with pure DI water. a. homogeneous mixture          b.…

Q: er| Portal E Edulastic O Sence Spring Semester Exm *…

A: The  changes that affect the form of a chemical substance, but does not affect  its chemical…

Q: Fill the blanks with the possible physical methods of separation/processes. Matter Heterogeneous…

A: The solution is given below -

Q: Use unit analysis to show how to calculate the volume occupied by 19.2 grams of gold.

A: Given :- mass of gold = 19.2 g               Density of gold = 19.28 g/mL To calculate :- volume…

Q: 63. Identify the following as either a homogeneous mixture, heterogeneous mixture, element, or…

A: In this problem, we have to discuss the terms element and compounds. Element: It can be defined by…

Q: 57.0 µL drops of two different liquids are put on the same surface: Liquid X Liquid Y Note for…

A: The solution is given below -

Q: Determine if the following mixtures are homogeneous or heterogeneous. Explain why they are…

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Q: C. Identify whether the substances listed below is an element (E), a compound (C), a Heterogeneous…

A: A substance that is made up of only one type of atom is called an element. A substance that is…

Q: 1. Metal Ore a. element b.compound c. mixture   2.  Grinding dried leaves into a fine powder…

A: We have to classify metal ore and type of change occuring on grinding leaves.

Q: Which one of the following is a unit of mass? A) μL B) Mg C) cd D) mm2 E) in.

A: Here we have to find which of the following is a unit of mass.  We know that mass is the combined…