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List the main characteristics that an Earth material must possess to be considered a mineral and describe each.
Compare and contrast the three primary particles contained in atoms.
Distinguish among ionic bonds, covalent bonds, and metallic bonds.
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- Name and give symbols for three transition metals in the fourth period. Look up each of your choices in a dictionary, a book such as The Handbook of Chemistry and Physics, or on the Internet, and make a list of their properties. Also list the uses of each element.Sketch a magnified view (showing atoms/molecules) of each of the following and explain: a. a heterogeneous mixture of two different compounds b. a homogeneous mixture of an element and a compoundRead: An Ion is a charged atom, # protons ≠ # electrons. On page three, paragraph one states, “The prefix poly- means many and atomic refers to atoms, so a polyatomic ion is an ion that contains more than one atom. This differentiates polyatomic ions from monatomic ions, which contain only one atom.” Ions that contain only one atom are called monoatomic ions. Ions that contain more than one atom are called polyatomic ions. A monatomic ion is a single charged atom, with the number of protons not equal to the number of electrons. A polyatomic ion is a group of covalently-bonded atoms, with the total number of protons not equal to the total number of electrons. Using the image attached how could you further elaborate this answer? Cite evidence from the image.
- Create a diagram to trace the development of the modern periodic table based on the observations on the properties of the elements? 3. Is the periodic table useful to you as a student? Justify your answer. 2. If you were to create a simple product using metals, nonmetals, and metalloids, what would your product be like? Sketch the design and composition of your product. Then, briefly explain what properties of each material are utilized in each part of the product. 4.There are four sketches below. The first sketch shows a sample of Substance X. The three sketches underneath it show three different changes to the sample. You must decide whether each of these changes is possible. If a change is possible, you must also decide whether it is a physical change or a chemical change. Each sketch is drawn as if the sample were under a microscope so powerful that individual atoms could be seen. Also, you should assume that you can see the entire sample, and that the sample is in a sealed box, so that no matter can enter or leave. Change 1 Change 1 is: 00 impossible a physical change a chemical change Sample of Substance X 000 Change 2 Change 2 is: impossible a physical change a chemical change Change 3 Change 3 is: 00 impossible a physical change a chemical changeThere are four sketches below. The first sketch shows a sample of Substance X. The three sketches underneath it show three different changes to the sample. You must decide whether each of these changes is possible. If a change is possible, you must also decide whether it is a physical change or a chemical change. Each sketch is drawn as if the sample were under a microscope so powerful that individual atoms could be seen. Also, you should assume that you can see the entire sample, and that the sample is in a sealed box, so that no matter can enter or leave. Sample of Substance X Change 1 Change 1 is O impossible O O a chemical change a physical change Change 2 Change 2 is: impossible O a physical change O a chemical change Change 3 000 000 Change 3 is: O impossible O a physical change O a chemical change X
- There are four sketches below. The first sketch shows a sample of Substance X. The three sketches underneath it show three different changes to the sample. You must decide whether each of these changes is possible. If a change is possible, you must also decide whether it is a physical change or a chemical change. Each sketch is drawn as if the sample were under a microscope so powerful that individual atoms could be seen. Also, you should assume that you can see the entire sample, and that the sample is in a sealed box, so that no matter can enter or leave.There are four sketches below. The first sketch shows a sample of Substance X. The three sketches underneath it show three different changes to the sample. You must decide whether each of these changes is possible. If a change is possible, you must also decide whether it is a physical change or a chemical change. Each sketch is drawn as if the sample were under a microscope so powerful that individual atoms could be seen. Also, you should assume that you can see the entire sample, and that the sample is in a sealed box, so that no matter can enter or leave. Sample of Substance X Change 1 Change 2 Change 3 Change 1 is: Change 2 is: Change 3 is: O impossible O a physical change O a chemical change O impossible O a physical change O a chemical change O impossible O a physical change O a chemical changeThe zinc inside the penny reacted with acetic acid (CH3COOH or CH3CO2H). The products are zinc acetate and hydrogen gas. Write out the balanced chemical reaction of zinc with acetic acid.
- • Sucrose: C12 H22O11 • Copper (I) Chloride: CuCl • lodine: I2 • Potassium lodide: KI Our goal is to try to find a pattern for which compounds conduct electricity when dissolved in water, and which don't. One hint is to look for patterns in which kinds of atoms form substances that conduct when dissolved, and which kinds of atoms form substances that don't conduct when dissolved. Here is a periodic table you can use. H. Не yrgen 1008 Helum 4000 10 metals nonmetals metaloids Li Be Ne Carbon Ovgn Pucene Neon Lihum 6.54 Berylum 9012 11 12 13 14 15 16 17 18 Na Mg Al Si P. CI Ar Prosphonue 00.974 Sutu Cre 35.45 Argn Sodium 22 999 Magresiu 4305 28.982 32.06 310 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 19 20 K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Galum 6.723 Bomre Cebat Cnppr Scandum 44956 Oron 51 Tnum Vanadum 72630 79.904 Calcium 40.07 55.845 N 2492 20.0 45 46 47 48 49 50 51 53 53 54 37 38 39 40 41 42 43 44 Rb Sr Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te Xe Telu 127A0 thodu…Matter is neither created nor destroyed in a chemical reaction. Thus, the mass of the products of a chemical reaction must be equal to the mass of the starting materials. Formally, this concept is called the law of conservation of mass. A sample of sodium reacts completely with 0.426 kg k g of chlorine, forming 702 g g of sodium chloride. What mass of sodium reacted?A pure substance has been isolated in the laboratory. Based on the two characteristics below, how can the substance be classified? 1. The species can not be separated by physical means. II. The species can be separated by chemical means. a compound O a heterogeneous mixture O a homogeneous mixture an element
