Distillation: Separating Liquids depending on their Boiling points. Fractional Distillation: Same as Distillation but separating more than two Substances with different Boiling Points. 5) Understand the importance of purity in substances in everyday life‚ e.g. foodstuffs and drugs. If the substances are not pure they can harm you. If they have something toxic within them‚ if their concentration is too high or too low won’t work as well. 6) Identify substances and assess their purity from melting
Premium Ontology Water Management
Vanessa Jimenez (period 3) Nuclear Chemistry Essay In today’s society‚ nuclear chemistry has slowly been introduced and taking over. Nuclear energy is even being considered as an alternate source of energy that is to be beneficial to our environment. More people are using nuclear power and it can be seen in a long range of our medical technology. This however‚ is not a good thing for the future of society. While nuclear energy does present some benefits to society‚ overall it causes too much damage
Free Nuclear weapon Nuclear fission Uranium
published for this class in the Syllabus and Academic Integrity Handouts.” Purpose- The purpose of this lab was to display to us a variety of different reactions using an eclectic of things in the chemistry lab: including magnesium‚ methanol‚ and fire. This was to make what we are doing on paper in class a real life circumstance. Analysis questions 1) A) Part A 2Mg+O2 à(delta/heat) 2MgO Part B 2CuCO2 à(delta) 2Cu+CO2+O2 Part C Zn+HCl à H2 Part D CuCl2+2NaOHà 2NaCl+ Cu(OH)2
Premium Chemistry Chemical reaction Experiment
Wavelength‚ frequency‚ and amplitude and energy. As a person in science‚ i should know the order of colours in the visible spectrum and the span of visible wavelengths. Question: if light is a .. Answer: max planck proposed that e.m radiation comes in units of defined energy rather than in any arbitrary quantities. Planck called it quantum The Photoelectric Effect Planck’s theories were used to explain a number of observations that had been troubling scientists. Einstein extended
Premium Quantum mechanics Atom Periodic table
Chemical Education Today Especially for High School Teachers by Erica K. Jacobsen Chemistry in My Kitchen The Jacobsen kitchen is an unusual place. The atmosphere is often more “mad scientist” than “gourmet chef ”. Testing JCE Classroom Activity procedures at home brings an eclectic collection of materials to our counters. Our toaster competes for space with a collection of funnels made from 2-liter plastic beverage bottles and rubber stoppers (1). Baking soda from my shelf joins citric acid
Premium Chemistry Education High school
He a lt h 0 3 2 3 Fire 0 Re a c t iv it y 2 P e rs o n a l P ro t e c t io n Material Safety Data Sheet Sulfuric acid MSDS Section 1: Chemical Product and Company Identification Product Name: Sulfuric acid Contact Information: Catalog Codes: SLS2539‚ SLS1741‚ SLS3166‚ SLS2371‚ SLS3793 CAS#: 7664-93-9 Sciencelab.com‚ Inc. 14025 Smith Rd. Houston‚ Texas 77396 RTECS: WS5600000 US Sales: 1-800-901-7247 International Sales: 1-281-441-4400 TSCA: TSCA
Premium Sulfuric acid Oxygen Chlorine
Abstract The separation of a Fe3+ and Ni2+ mixture was firstly investigated; followed by the determination of the Fe3+ and Ni2+ content (concentration) in the original mixture. It was found that iron was a yellow solution and nickel respectively had a greenish colour. Their original concentrations respectively were 0.03669 M for iron and 0.03159 M for nickel. Introduction Ion exchange materials are insoluble substances containing loosely held ions which are to be exchanged with other ions in
Premium Hydrogen Hydrochloric acid Titration
1) How many hydrogen atoms are represented in the formula (CH3)2CH2? 1) _______ A) 8 B) 6 C) 9 D) 5 2) Which has the highest percent mass of Cl? 2) _______ A) C2Cl6 B) CCl4 C) C2Cl4 D) C2Cl2 3) The correct formula for Sodium Nitride is: 3) _______ A) Na3N B) NaNO2 C) NaNO3 D) Na2NO3 4) How many moles of NO3 are there in 6.2g? 4) _______ A) 0.05 B) 10 C) 0.10 D) 384 5) Consider the following equation: 4NH4 + 5O2 → 4 NO + 6H2O How many moles of water
Premium Trigraph Chlorine Oxide
Using colorimetry to find the order of a reaction introduction Coloured solutions absorb some of the wavelengths in the visible region of the electromagnetic spectrum. A colorimeter can be used to measure the amount of light absorbed by a solution (the absorbance) and this is proportional to the concentration of the coloured species present. In this experiment you will use a colorimeter to investigate the reaction between bromine and methanoic acid:- Br2 (aq) + HCOOH (aq) ↓ 2Br-
Free Chemistry Concentration Color
Determine the oxidation number of the elements in each of the following compounds: a. H2CO3 H: +1‚ O: -2‚ C: +4 b. N2 N: 0 c. Zn(OH)42- Zn: 2+‚ H: +1‚ O: -2 d. NO2- N: +3‚ O: -2 e. LiH Li: +1‚ H: -1 f. Fe3O4 Fe: +8/3‚ O: -2 Identify the species being oxidized and reduced in each of the following reactions: a. 2 Cr+ + Sn4+ Cr3+ + Sn2+ Cr+: oxidized‚ Sn4+: reduced b. 3 Hg2+ + 2 Fe (s) 3 Hg2 + 2 Fe3+ Hg2+: reduced‚ Fe: oxidized c. 2 As (s) + 3 Cl2 (g)
Free Oxidizing agent Carbon dioxide Hydrogen