what you add and what happens when you add it. Remember‚ you cannot add single ions‚ only compounds or aqueous solutions of the compounds. a. Ba2+‚ Mg2+ and Na+ b. Ag+‚ Cu2+ and Mg2+ 16. Complete the balanced dissociation equation and write the Ksp equation for the following dissolving substances. a. CaCO3(s)
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Antimony 3 N2 Dinitrogen 4 PO43- Phosphate 5 Au Gold 6 Rb Rubidium 7 LiCl Lithium Cloride 8 AlBr3 Aluminum (III) Bromide 9 KMnO4 Potassium Manganate (VII) 10 Cu(OH)2 Copper (II) Hydroxide 11 FeSO4 Iron (II) Sulfate 12 NH4Cl Ammonium Chloride 13 ZnCO3 Zinc Carbonate 14 SnF2 Tin (II)Fluoride 15 MgSO4 Magnesium Sulfate 16 MnO2 Manganese (IV) Oxide 17 Ca3(PO4)2 Tricalcium Phosphate 18 NaOH Sodium Hydroxide 19 HCl Hydrogen Cloride 20 Ba(HSO3)2 Barium Bisulfite 21 HNO3 Hydrogen Nitrate
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atoms in 3.08g of tetrachloromethane (CCl4) b. The number of moles of fluorine atoms in 204 g of boron trifluoride BF3; c. The number of moles of chloride in 5.55 g of calcium chloride‚ CaCl 2 d. The number of moles of sulphate ions in 144g of magnesium sulphate 3 e. The number of molecules in 1000 cm of barium nitrate 5. 100 cm3 of hydrogen chloride gas was mixed with a metallic compound producing a very volatile & explosive reaction. What is the mass of this gas at RTP? Chemist ry 6.
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_____________________________________________ Project 3: Identifying the Unknown White Compound by Testing Physical and Chemical Properties _____________________________________________ Michigan State University Chemistry Lab 161 Section 27 19 October 2017 Friday 11:00-1:50 Introduction For this experiment‚ there was an unknown white compound that had to be identified. By testing this compound for different properties it made making an educated guess easier to determine
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TABLE OF CONTENTS 1. IA (Alkaline Metals) 1.1. H………………………………………………………………………..2 1.2. Li………………………………………………………………………..2 1.3. Na………………………………………………………………………2 1.4. K………………………………………………………………………..3 1.5. Rb………………………………………………………………………3 1.6. Cs………………………………………………………………………3 1.7. Fr……………………………………………………………………….4 1. IIA (Alkaline Earth Metals) 2.8. Be………………………………………………………………………4 2.9. Mg………………………………………………………………………4 2.10. Ca………………………………………………………………………4
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| Potassium Chloride (KCl) | Yes | Bubbles | More bubbles than in anode | Glucose (C6H12O6) | No | Nothing changes | Nothing changes | Dilute Sulfuric Acid (H2So4) | Yes | Bubbles | Bigger bubbles | Sucrose (C12H22O11) | Yes | Light bubbles | Light but more visible bubbles and light brown liquid | Copper Sulfate (CuSo4) | Yes | Light bubbles | Changes color to brown and oxidation is observed | Ethanol (c2H5OH) | No | Nothing changes | Nothing changes | Calcium Hydroxide (Ca(OH)2)
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Nuts and Bolts Table 4.2. Mass of nuts and bolts Mass of nuts (g) 4.126 Mass of bolts (g) 24.176 Mass of nut-and-bolt pairs 14.000 Table 4.3. Summary of results on nuts and bolts. B. THE TARGET: Reaction of Sodium Carbonate and Calcium Chloride. Table 4.4. Observations from the reaction between Na2CO3 and CaCL2. Sample Observations Na2CO3 solution COLORLESS CaCL2 solution COLORLESS Na2CO3 + few drops of CaCL2 Produced a cloudy‚ white mixture After Filtration Precipitate
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de-stabilization of the milk proteins. Sommer and Hart’s Salt Balance Theory (1919) conceives that optimum heat stability is dependent on a certain ratio/balance of calcium plus magnesium-ions to phosphate plus citrate-ions. Any disturbance in the salt balance‚ due to excess or deficiency of either group‚ accelerates heat coagulation. (Calcium + Magnesium) / (Citrate + Phosphate) Acidity combined with heat is mainly responsible for coagulation of milk. When milk is concentrated‚ the total solid
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Contents 1) Sulphuric Acid----------------------------------------------------------------(1-6) a. Uses of sulphuric b. Manufacture of sulphuric acid c. Sulphur dioxide and environmental pollution 2) Ammonia and Its Salt-----------------------------------------------------(7-10) d. Uses of ammonia e. The properties of ammonia f. Manufacture of ammonia g. Preparation of ammonium fertilisers 3) Alloys------------------------------------------------------------------------(11-14)
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the non-metal that is responsible for the colour produced in the flame test for that salt. How can you be sure your answer is correct? Metal is responsible for the colour produced in the flame test for that salt. All salts contain chloride ion. If non-metal ion‚ chloride‚ is responsible for the colour‚ all colour produced will be the same. 3. Why do the chemicals have to be heated in the flame before the coloured light is emitted? For the coloured light to be emitted‚ the electrons have to get
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