Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
Bartleby Related Questions Icon

Related questions

Q: Please explain what you mean by "GIS," thank you.
A: Please explain what you mean by "GIS" answer in below step.
Q: Please help me with this question.Thank you.
A: To represent the memory dump using little endian, we start with the least significant byte and…
Q: please i ned help this questions with flowgorithm chart. thanks
A: Flowchart is step by step representation of program using flows and symbols. It represents sequence…
Q: The price of an item is included in the Universal Product Code.
A: Universal Product code is a 12-digit unique number. It is assigned to each product. It is printed on…
Q: Selena Gomezz has ventured into e-commerce and her website has a lot of products - so many that her…
A: The solution to the given question is: It is important for any business to focus on customer…
Q: Consequently, users may opt to submit data through the command line as opposed to the GUI.
A: Why would a user pick a command line over a graphical user interface for input? Answer: Users often…
Q: Use the SUMIF function when you want to: Display the sum of a range only if the answer is a positive…
A: According to the information given: We have SUMIF As we use SUMIF in Microsoft excel According to…
Q: current directory, and color of the prompt using the raspberry pi program. Please submit your screen…
A: Enter the user, time, current directory, and color of the prompt using the raspberry pi program.…
Q: Microsoft Word guides Title the document. You may link to a file.
A: The answer is given in the below step
Q: You work in your organization's inventory department. At the end of each year, you need to determine…
A: COUNTIF function in excel is used to count the number of cells that match a single condition…
Q: make use case diagram about consumer and chicken breeder application. In this app, consumer can buy…
A:
Q: may i have a screenshot of the code please
A: The code screenshot is given in the below step along with output screenshot
Q: __ is a constant (numeric value) or an address that determines the upper limit of the test range.
A: The correct answer is given in step 2.
Question

Please help

Please indicate the question you are doing

Part A: CALCIUM - determine how mamy pieces of calcium need A. Fill a large test tube with water and invert it into a beaker full of water. Drop a piece of dean calcium into the beaker and hold the inverted test tube immediately above it. When the reaction is over (or when the tube is full of gas), remove it from the beaker but keep it inverted and bring a flaming splint to its mouth. Save the liquid in the beaker and test it with a strip of red litmus paper. i. ii. iii. iv. OBSERVATIONS: gas produced; pop with flaming splint; water turned red litmus paper blue В. Hold a flake of calcium with the crucible tongs and put it into a bunsen flame for 2-3 minutes. Allow the residue to cool. Wet a piece of red litmus paper and touch the residue. Then drop the residue into a test tube and half fill it with water. Does the residue dissolve? i. ii. ii. iv. OBSERVATIONS: residue did not dissolve very well and turned litmus paper blue C. Very carefully drop a small piece of clean calcium into 5 mL of hydrochloric acid in a small test tube and collect the gas by placing your thumb over the test tube, ii. i. Test the gas with a flaming splint. OBSERVATIONS: vigorous reaction and white solid formed; gas popped in a flaminR splint Part B: MAGNESIUM - determine how many pieces of magnesium you need D. Clean two pieces of magnesium ribbon. Drop one piece into a test tube of cold water and the second into a test tube of very hot water. Observe each test tube carefully for signs of a reaction. Drop a piece of red litmus paper into each test tube. Remove the magnesium strips and re-use them for the next experiments. i. iv. V. OBSERVATIONS: cold water showed no reaction; hot water showed vigorous reaction; red litmus did not turn blue Vi. Drop a piece of clean magnesium from the cold tube into a test tube containing some dilute hydrochloric acid. vii. Test the gas with a flaming splint. OBSERVATIONS: magnesium reacts producing bubbles: gas popped in a flaming splint E. Burn a strip of magnesium in the air using the crucible tongs and transfer the residue to a test tube of water. ii. Note the solubility of the solid. Drop a piece of red litmus paper into the test tube. Heat the liquid and note all changes. iv. OBSERVATIONS: bright light produced, solidonly slightly soluble: turned litmus paper blue B.
expand button
Transcribed Image Text:Part A: CALCIUM - determine how mamy pieces of calcium need A. Fill a large test tube with water and invert it into a beaker full of water. Drop a piece of dean calcium into the beaker and hold the inverted test tube immediately above it. When the reaction is over (or when the tube is full of gas), remove it from the beaker but keep it inverted and bring a flaming splint to its mouth. Save the liquid in the beaker and test it with a strip of red litmus paper. i. ii. iii. iv. OBSERVATIONS: gas produced; pop with flaming splint; water turned red litmus paper blue В. Hold a flake of calcium with the crucible tongs and put it into a bunsen flame for 2-3 minutes. Allow the residue to cool. Wet a piece of red litmus paper and touch the residue. Then drop the residue into a test tube and half fill it with water. Does the residue dissolve? i. ii. ii. iv. OBSERVATIONS: residue did not dissolve very well and turned litmus paper blue C. Very carefully drop a small piece of clean calcium into 5 mL of hydrochloric acid in a small test tube and collect the gas by placing your thumb over the test tube, ii. i. Test the gas with a flaming splint. OBSERVATIONS: vigorous reaction and white solid formed; gas popped in a flaminR splint Part B: MAGNESIUM - determine how many pieces of magnesium you need D. Clean two pieces of magnesium ribbon. Drop one piece into a test tube of cold water and the second into a test tube of very hot water. Observe each test tube carefully for signs of a reaction. Drop a piece of red litmus paper into each test tube. Remove the magnesium strips and re-use them for the next experiments. i. iv. V. OBSERVATIONS: cold water showed no reaction; hot water showed vigorous reaction; red litmus did not turn blue Vi. Drop a piece of clean magnesium from the cold tube into a test tube containing some dilute hydrochloric acid. vii. Test the gas with a flaming splint. OBSERVATIONS: magnesium reacts producing bubbles: gas popped in a flaming splint E. Burn a strip of magnesium in the air using the crucible tongs and transfer the residue to a test tube of water. ii. Note the solubility of the solid. Drop a piece of red litmus paper into the test tube. Heat the liquid and note all changes. iv. OBSERVATIONS: bright light produced, solidonly slightly soluble: turned litmus paper blue B.
1. Compare the-chemical reactivity of calcium and magnesium. 2. Explain the red litmus paper result. 3. Can you suggest a reason for the difference in chemical reactivity of these two elements even though they are in the same group?
expand button
Transcribed Image Text:1. Compare the-chemical reactivity of calcium and magnesium. 2. Explain the red litmus paper result. 3. Can you suggest a reason for the difference in chemical reactivity of these two elements even though they are in the same group?
Expert Solution
Check Mark
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
See solutionCheck out a sample Q&A here
Step 1
VIEW
Magnesium
VIEW
Calcuim
VIEW
bartleby

Step by stepSolved in 3 steps

See solution
Check out a sample Q&A here
Blurred answer
Knowledge Booster
Background pattern image
Computer Science
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Text book image
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Text book image
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Text book image
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
Text book image
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Text book image
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Text book image
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education
SEE MORE TEXTBOOKS