Physical & Chemical Properties Data Table 1: Solubility or Reaction Substance Name Color Odor Effect of Heat Cold Water Hot Water Litmus test Dilute HCl Dilute NaOH Mg Silver None None None None Base Fizzes‚ gas‚ increased temperature None Cu Brown None None None None Base None None Zn Silver None None None None Base Fizzes None MgO White Slight odor None None Bubbles Base Dissolves‚ turns yellow‚ increased temperature None CuCO3 Green None Melts
Premium Chemistry Sodium Chemical reaction
Physical and Chemical Properties Chem 107 6-4-2013 A pure substance or chemical substance is a material that is homogeneous. It has consistent properties throughout the sample.” Pure substances can be described by both physical and chemical properties”. Physical properties can include‚ color‚ odor‚ melting point‚ boiling point‚ and solubility in various solvents‚ etc. The observation of these physical properties does not involve any chemical change in the substance‚ it is still the same
Premium Chemical reaction Chemistry Color
Classifying Chemical Reactions Introduction Pre-lab questions 1. Which reactants used in this experiment are flammable? Discuss the safety precautions that are necessary when working with flammable materials in the lab? 2. Summarize the following description of a chemical reaction in the form of a balanced chemical equation? 3. Common observations of a chemical reaction are described in the introduction section. For each observation‚ name a common or everyday occurrence that must involve a chemical reaction
Premium Sodium hydroxide Chemical reaction Chlorine
2013 Title: Observations of Chemical Changes Purpose: To observe some properties of chemical reactions and to associate chemical properties with household products. Procedure: In this experiment I used a 96-well plate to hold each of the chemical reactions that occurred during this lab. Using a pipet‚ I added two drops of one chemical with two drops of another chemical and observed the effects of each reaction. Data Table 1: Experimental Data Well # | Chemicals | Observations | |
Premium Chemistry Chemical reaction Water
Observations of Chemical Changes Lab Report Expectations: Data Table 1: What you Expected to happen Well #/ Question Chemicals Reaction A NaHCO3 and HCI - C02 A bubble occurrence B HCI and BTB A deep yellow C NH3 and BTB A purple color D HCI and blue dye A deep blue E Blue dye and NaOCI A greenish color F NaOCI and KI A bright red G KI and Pb(NO3)2
Premium Green Purple Blue
McDonald 1 Chemical and Biological Weapons: World at War Matthew McDonald Mrs. Jones English I 4 March 2015 McDonald 2 Chemical and Biological Weapons: World at War THESIS STATEMENT: Chemical and biological weapons are necessary because they strike fear in the enemies‚ effective in their power‚ and can be used as population control. I. Introduction A. Background Information B. Thesis Statement II. Strike fear into your enemies A. Fear of retaliation
Premium World War II Biological warfare World War I
Max Weber Foundation – German Humanities Institutes Abroad Principles of the Tasks and Processes of Quality Assurance in the Max Weber Foundation In accordance with Art. 6‚ Para 3‚ Item 5 of the DGIA law‚ the Board of Trustees monitors the “activities of the institutes and other bodies of the foundation and arranges the evaluation of the institutes”. The principles of evaluation are listed in detail in the statutes of the Max Weber Foundation. To guarantee a scientifically adequate and transparent
Premium Board of directors Management
Name: EXEMPLAR Date: …………………. 1.1 Choose the FIVE correct functions of assessment in learning and development from the following… Collect personal information Complete documents and report to employers Determining level of knowledge & understanding √ Ensuring that learning is taking place √ Checking progress√ Adhering to course criteria √ Providing a summary to learning √ Stop Learners from wasting time Discourage
Premium Assessment Educational psychology Evaluation
eventual NBA champion Spurs‚ 4 games to 1. Atlanta Hawks (2005–2012)[edit] Johnson with the Nets In the summer of 2005‚ Johnson became a highly touted restricted free agent and expressed a desire to leave the Suns to assume a larger role on the Atlanta Hawks. Johnson grew upset with Phoenix’s initial offers to re-sign him feeling they were well below his market value. This rift eventually led to Johnson requesting the Suns not match Atlanta’s $70 million offer. On August 19‚ 2005
Premium Boston Celtics National Basketball Association Shaquille O'Neal
difference in IQ test scores between African Americans and non-Hispanic white Americans can be attributed almost entirely to different patterns of socialization and environmental factors. The history of the race and intelligence controversy concerns and focuses on the historical enlargement of a debate‚ mainly in the United States of America‚ with the indication to potential explanations of group differences in scores on intelligence tests or IQ tests. Also the correlation between race and intelligence
Premium United States Intelligence quotient Intelligence