Questions: 1. H H H C C H H C C H C H H C H H Compound A Compound A is an intermediate compound found in a production plant attempting to synthesise n-hexane. a) List three physical properties of alkynes. b) Give the IUPAC name of compound A. [3 marks] [2 marks] c) There are several ways to form the final product from Compound A. An operator has decided to use Pt catalyst to react with Compound A. Write the complete chemical reaction equation. [3 marks] d) The quality assurance manager of the production
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Arenes The aromatic hydrocarbons also have the name arenes. They contain in their molecule one or more cycles made up from 6 carbon atoms. When the molecule is formed out of a single cycle‚ the hydrocarbons are mono nucleuses; when the molecule contains more than one cycle‚ the hydrocarbons are poly nucleuses. The simplest aromatic hydrocarbon‚ benzene‚ is compound out of just one such cycle; its formula is C6H6. The representation of benzene through a cycle of 6 carbon atoms with 3 double bounds
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Philippines is the Coco Jam. It is made from a base of coconut and sugar. In line with this‚ my proposed product “calamansi jam” is of the same kind with coconut jam and their only difference is the usage of calamansi instead of coconut base. 2. onion extrcts as coackroach killer Onion and Calamansi Extracts as Coackroach Killer ABSTRACT Cockroaches are the most noted pests insects due to their population.
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(n= 1 in the Bragg equation)‚ What is the interlunar spacing of silicon? nλ = 2d sin θ 1(154) = 2d sin 14.22 154 = 2d (0.245) 2d = 626.92 d = 313.46 2. A topaz crystal has an interplanar spacing (d) of 1.36 Å (1 Å = ). Calculate the wavelength of the X ray that should be used if θ = 15.0° (assume n = 1) nλ = 2d sin θ 1(λ) = 2(1.36) sin 15 λ = 2(1.36)(0.258) λ = 0.704
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of limescale without damaging any household surfaces. It is also non-toxic as it is an natural acid. it is a weak acid it takes a long time to remove heavy build-up of lime scale. It comes in a power form so takes longer because it has to dissolve. (2)
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Hypothesis: If the mass and volume of a substance increase‚ then the density will increase as well. Materials: 100 mL graduated cylinder Paper towels Copper bb’s Electronic balance Pre-Lab Questions: 1) The density of copper is 8.92 g/mL. 2) The density of steel is 7.85 g/cm³ 3) There is only one type of copper‚ so the density should be one specific density. However‚ there are multiple grades of steel‚ so the value of the density can vary. 4) If you determine the density by using a graphical
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electric current. Bases: Aqueous solutions of bases taste bitter. Bases change the color of acid-base indicators. Dilute aqueous solutions of bases feel slippery. Bases react with acids to produce salts and water. Bases conduct electric current. 2. a. Distinguish between binary acids and oxyacids in terms of their component elements and the systems used in naming them. b. Give three examples of each type of acid. - Binary acids contain H atoms (which are released as H+ when the acid is dissolved)
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ELECTROSTATIC PRECIPITATOR – It works on the principle of electrostatic precipitation i.e. electrically charged particles are separated from the air by electrical field. It consists of – 1 Electrically charged (positive) collecting surface. 2 High voltage discharge electrodes. 3 Weight at bottom of electrode wire to keep the wire in position. Working – The polluted air enters from the bottom and flows upwards. The high voltage in the wire (50KV) ionizes the air. The negative ions move
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Test #3 Chapter 2: 1) What is matter? 2) What is mass? 3) Matter that has a uniform and definite composition is called a ______. Give an example. 4) A quality/condition of a substance that can be observed/measured without changing the substance is a ________ __________. Give examples. 5) What are the three states of matter? Put the correct state of matter in each box. 6) What is the difference between gas and vapor? 7) What is a physical change? Give an example. 8) A physical blend
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Company #1: Neils Bohr Equation: 3Na2CO3 + 2AlPO4 = 2Na3PO4 + Al2(CO3)3 Reaction: Double Displacement Company #2: Hello Equation: C5H12 + 8O2 = 5CO2 + 6H2O Reaction: Combustion Company #1 Neils Bohr 3Na2CO3
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