Report Submitted: February 17‚ 2013 Title: Physical and Chemical Properties Purpose: To investigate and learn the physical and chemical properties of pure chemical substances. Procedure: I used various different tools to investigate the different physical and chemical properties‚ such as blue and red litmus papers‚ beakers‚ and wells. Data Tables: Substance Name Color Odor Heat Effect Cold H2O Hot H2O Litmus Test Dilute HCl Dilute NaOH Mg Silver None None None Not soluble‚ small bubbles Red
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2014 Lab report #1 on chemical and physical properties/ changes Introduction Summary: The purpose of this experiment is to allow students to understand how to differentiate physical and chemical properties and reactions of matter by observing changes of matters under circumstances. Physical properties are properties of matter that can be observed without changing the composition of the matter‚ including the volume‚ mass‚ color‚ density‚ and shape of it. Chemical properties include the matter’s
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physical chemical properties essay Oakland Schools SCoPE Science Assessment Packet 7th Grade Unit 2 – Physical and Chemical Properties and Changes of Matter Assessment Packet Grade 7‚ Unit 2: Physical and Chemical Properties and Changes of Matter Overview This packet contains a set of assessment resources to be used with the Physical and Chemical Properties and Changes of Matter Unit of the 7th grade Scope Science Curriculum. A test blue print is
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Name: Tom Flannigan Title: Physical and Chemical Properties Purpose: To investigate the chemical properties of pure chemical substances. To investigate the physical properties of pure chemical substances. Procedure: For this lab we used four test tubes and poured equal amounts of a substance in each test tube. We then observed the color and odor. We then heated the substance and recorded the observation. The next tube we added cold water and observed the effects‚ then we heated it
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large mass products and manufacturing on a large scale is what gives heavy industry its name. These industries include manufactures of mass transport such as ships and trains‚ oil refineries‚ mining industries‚ and steel manufacturing. As these industries operate on such a large scale they require a lot of resources such as energy and money to fund them. They also require a lot of industrial space. These heavy industries are usually found in the primary and secondary sector dealing with other businesses
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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
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Observations of Chemical Changes Purpose: The purpose of this experiment is to predict and examine chemical changes/reactions among common chemicals found in consumer products at a macroscopic level. Procedure: The procedure of this experiment was to carefully mix different chemicals together using the chemical filled pipettes and the 96-well plate and determining what chemical reactions occurred. Data Table: Observations of Chemical Changes Experiment 1: Observations of Chemical Reactions |
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Name: Jeanne Yoo|Date: 07/15/13| Exp 1: Observations of Chemical Changes|Lab Section: 1411-76426| Data Tables: Part 1: |Chemicals|Well No.|Observations of the Reaction| A.|NaHCO3 + HCl|1 |clear bubbles formed| B.|HCl + BTB|2 |turned orange after BTB was added‚ transparent‚ acidic| C.|NH3 + BTB|3 |turned dark blue after BTB was added‚ opaque‚ basic| D.|HCl + blue dye| |blue dye was missing from kit| E.|Blue dye + NaOCl| |blue dye was missing from kit| | with the 1 drop of HCl| ||
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Balancing chemical equations 1. Complete the following sentences‚ using the words or groups of words in the box below. You may use some words more than once. |• as small as possible |• decrease |• molecules |• quantities | |• balance |• different |• nature |• rearranging | |• bonds |• equal
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Definition of small scale industry INTRODUCTION � An organization can be classified as a small business using criteria of employees ‚annual sales or total assets .small industry any independently owned and operated profit seeking enterprise that has a fewer than 500 employees .small industry may be little in size ‚but they have little impact on the world economy . in india ‚small and medium industy play a vital role in the growth of economy . Small industry have a 40 percent of share in
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