Rules for Naming and Writing Compounds I. Ionic Bonds • bonding between a metal and non-metal or the bond between a positive ion and a negative ion forming a binary compound. • end in the suffix "ide" • Or bonding between a metal and a complex ion. Steps in writing formulas: • • • • Use a periodic table of elements and of ions. Write the symbol and charge of the cation first (positive ion) Write the symbol and charge of the anion next (negative ion) Use criss-cross rule to balance for an electrically
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milky texture| H.|NaOH + phenolphthalein|6 |turned dark pink‚ magenta| I.|HCl + phenolphthalein|7 |clear| J.|NaOH + AgNO3|8 |turned brownish green‚ cloudy| K.|AgNO3 + NH3|9 |turned light brown| |after exposure to bright light| || L.|NH3 and CuSO4|10 |light blue‚ cloudy| Part F: Testing of Various Foods with the NaOCl + KI solution Foods|Presence or Absence of Starch| bread|present| tortilla chip|present| broccoli|absent| banana|present| cheerios|present| cheese|absent|
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CHAPTER 8: ACID – BASE EQUILIBRIUM 4 U CHEMISTRY P 526 – SEE KEY IDEAS - examples f acids and bases. 8.1: The Nature of Acid – Base Equilibria: - Arrhenius acids – H ions in water‚ bases – hydroxide ions in water - acids – sour‚ turn blue litmus to red (pink)‚ conduct electricity - bases – bitter‚ soapy taste‚ slippery‚ conduct electricity‚ turn red litmus to blue Bronsted – Lowry Theory: - acids – donate proton‚ bases accept proton - ex: HCl donates proton to water
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Back Laboratory Program SAFETY IN THE CHEMISTRY LABORATORY 786 Pre-Lab Extraction and Filtration 790 1-1 Mixture Separation 792 1-2 Water Purification 794 3-1 Conservation of Mass 798 4-1 Flame Tests 801 Pre-Lab Gravimetric Analysis 828 13-1 Separation of Pen Inks by Paper Chromatography 830 13-2 Colorimetry and Molarity 834 14-1 Testing Water 838 804 7-1 Separation of Salts by Fractional Crystallization 806 7-2 Naming Ionic
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DATE PERFORMED: NOVEMBER 14‚ 2012 CALORIMETRY INSTITUTE OF CHEMISTRY‚ COLLEGE OF SCIENCE UNIVERSITY OF THE PHILIPPINES‚ DILIMAN QUEZON CITY‚ PHILIPPINES RECEIVED NOVEMBER 20‚ 2012 INTRODUCTION Heat is a form of energy that can be passed from an object with high temperature to an object with low temperature. The heat required to change the temperature of a substance by 1 K is called heat capacity. A calorimeter is a device commonly used to measure the amount of heat that
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Identification of a Copper Compound by Percent Mass Unknown Compound: #9 Abstract: The objective of this experiment was to identify the unknown pure copper salt compound of #9. To do this‚ the mass of copper in the unknown was calculated and then divided by the mass of the whole compound to get the percent copper. The molecular weight was also calculated by dividing mass of copper compound used by moles of compound in unknown sample. The percent copper averaged out to 31.6% while the molecular
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Date of Experiment: June 17‚ 2012 Report Submitted: June 17‚ 2012 Title of Experiment: Observation of Chemical Changes Purpose: To examine the reaction of common chemicals from household consumer products‚ and the changes they undergo. Procedure: After combining the chemicals listed below in Data Table 1‚ I observed the mixture against white and dark backgrounds by slipping white and black paper underneath the well plate. For every reaction‚ I wrote down the chemical combination‚ the
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phenolphthalein| H4|Turned cloudy and white in color| J.|NaOH + AgNO3| H3|Brown| K.|AgNO3 + NH3| |The solution on the paper towel did not change in color even after exposure to bright light for 3 minutes.| |after exposure to bright light| || L.|NH3 and CuSO4| |Overlooked this solution and was not able to do it| Part F: Testing of Various Foods with the NaOCl + KI solution Foods|Presence or Absence of Starch| Wheat bread|Absence of starch| Macaroni Cheese Pasta|Absence of starch| Yellow corn
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Student Exploration: Identifying Nutrients Directions: In this online lab‚ you will be practicing identifying nutrients found in food. 1. Go to explorelearning.com 2. Login using the username/password your online teacher gave you at the beginning of the semester. If you forgot it‚ check your messages in blackboard. Most likely your username and password are your FirstnameLastname (no spaces). 3. Find the “Identifying Nutrients” gizmo. 4. Click on launch. Let’s get started.
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Identification and Production of Materials ================================ Ethene‚ Polymers and Ethanol ================================ Catalytic Cracking Oil refineries need to balance their outputs of various products (petrol‚ diesel‚ fuel oil‚ etc.) to match the demands of the marketplace. Catalytic cracking is the process in which high molecular weight (high boiling point) fractions from crude oil are broken into lower molecular weight (lower boiling point) substances in order to increase
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