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Examples are of Oxidation Process 1 bleaching stains () @rusting of a a wheel (13 air added to a balloon 4 mixing liquid chec w milk,

Suppose that you heated the hydrated copper (II) sulphate in a test tube, instead of a beaker. How might this affect your results? 4 MAY 19 ... MacBook Pro & * %23 $ 2 3 4 5 6 7 E Y U G H J K C V M MOSISO command option command レー

A homogeneous mixture of two or more substances is called ________   a. a mess. b. a solution. c. an electrolyte. d. a solvent. e. a compound.

Can someone Please Help! No Plagiarism Please! Evaporation is a  __________________________________. Evidence - Explanation -  Iron rusting is a __________________________________. Evidence -  Explanation-  Milk souring is a _________________________________. Evidence -  Explanation-  A tire inflated with air is an example of a ___________________________. Evidence - Explanation - A pellet of sodium (Na) sliced in two pieces is an example of a _____________________________. Evidence - Explanation -

Directions: Read and understand each item and choose the letter of the correct answer. You can just answer letters no need to put explaination but if u want too its okay :)) 4. The electrolysis of water into hydrogen and oxygen is an example of ______ reaction.A. Combination C. double replacementB. Decomposition D. single replacement 5. What scientific law is explained using balanced chemical equations?A. Law of chemical reactions C. law of conservation of massB. Law of conservation of energy D. law of definite proportions 6. Which of the following symbols means a substance is in water solution?A. (aq) C. (l)B. (s) D. (w) 7. When oxygen is available, sulfur dioxide is produced from the burning of sulfur. Which of the followingword equations best represents this reaction?C. A. sulfur + oxygen → sulfur dioxide C. sulfur dioxide → sulfur + oxygenD. B. sulfur dioxide + oxygen → sulfur D. sulfur → sulfur dioxide + oxygen 8. In a chemical equation, the symbol that takes the place of the word…

What's In I. True or False. Write true if the statement is correct and false if it is incorrect. Use separate paper for your answers. 1. In sterilization process, alcohol solution should be 70%-90%. 2. It is very important to observe safety rules in sanitizing tools and equipment. 3. First thing to do in the preparation of metal implements is to soak the tools in cold soapy water. 4. Remove immediately tools and implements from disinfectant solution. 5. In storing tools and implements keep unclean and dull. 6. All hair, used cotton or other waste materials must be removed from the floor right away, and deposit it in a closed container. 7. Each beautician must wear a washable uniform while serving clients. 8. Only VIP's client must be provided with a freshly laundered towel. 9. Finger bowls must be sanitized before another client use them. 10. All waste materials should be disposed of in an enclosed waste bin fitted with polythene bin liner, durable enough to resist tearing.

b Window Help earning X ATM HOMEWORK Module 9 Mind Tap - Cengage Learning X entid=5735112480241329813180832311&eISBN=9781305862883&id=1707786068&snapshotid=33225... name of the element oxidized: formula of the oxidizing agent: Submit Answer X Use the References to access important values if needed for this question. tv References Cl₂ + H3ASO4- HASO2 + 2HCIO Oxidation Number: This is group attempt 2 of 10 In the above redox reaction, use oxidation numbers to identify the element oxidized, the element reduced, the oxidizing agent and the reducing agent. Autosaved at 11:20 PM A name of the element reduced: + formula of the reducing agent: ☎ W a D 9 ●

What is Flame Test Experiment? Discuss. What is your observations about this flame test experiment? Discuss. What is your own conclusion about this experiment? Discuss.

Mass of weighing tray:  1.435 g Mass of weighing tray and salicylic acid:  3.469 g Mass of salicylic acid used:  2.027 Mass of filter paper:  0.862 g Volume of acetic acid anhydride used:  4.06 mL Drops of sulfuric acid used:  5 Data Table (Product Yield) Mass of watch glass:  16.342 g Mass of watch glass, acetylsalicylic acid, and filter paper:  19.609 g Actual yield:  mass of acetylsalicylic acid:  ? Calculate percent yield Show the calculation for the number of moles of salicylic acid present in the reaction mixture.

ofiles Tab Window Help Bb Do - Mathematics X ATM HOMEWORK Modul X ?deploymentid=5735112480241329813180832311&eISBN=9781305862883&id=1707786068&sna APR 17 MindTap Cengage X G CIO4- + SO37 Use the References to access important values if needed for this question. name of the element oxidized: Submit Answer HXeO4 + 6NH3-3N2H4 + Xe+ 3H₂O+ OH- formula of the oxidizing agent: References ge in Oxidation Number: This is group attempt 1 of 10 tv In the above redox reaction, use oxidation numbers to identify the element oxidized, the element reduced, the oxidizing agent and the reducing agent. name of the element reduced: formula of the reducing agent: A ☎ W Q 9 Low Battery Your Mac will sleep soon u into a power outlet. M Q Search thi 1

Routinely in the police field, spot tests are performed to identify different compounds such as drugs (amine group) or alcohol concentrations in a possible DUI case. In this experiment, you will familiarize yourself with specific tests for various functional groups and use that information to identify an unknown compound (Exp. 58 - parts A, B, C, D, F and H). Name of Name of Positive test Negative Chemical Functional Generic Reaction for Test result/color test result/ Test change or precipitate color of test group reacts with test reagent Ignition Hydrocarbons Alcohols yellow, soty flame Doesn't Test Arom + 0, (g) ----> CO, (g) + H,O burn Solubility in 5% HCI Solubility in 5% NaHCO3 Solubility in 5% NaOH Silver Nitrate Test Bromine Alkenes, Test Alkynes KMNO, Test

What are the possible sources of error when reacting sodium bicarbonate and hydrochloric acid within an evaporating dish over wire gauze over a bunsen burner? Procedure of the lab down below.

1 of 22 > Line 1 6 - 4 3. Answer Bank Line 1 shows that cogs are inversely proportional to sprockets. Line 2 1 3 5 6 . 7 8 . 6. Line 1 shows that cogs are directly proportional to sprockets. Sprockets Line 2 shows that cogs are directly proportional to sprockets. Line 2 shows that cogs are inversely proportional to sprockets. 13 人tv T W. Cogs 4.

Chemical reactionc most comonly do work on their surroundings by    a. having gases as reagents only   b. Forming neutral solutions from acids and bases    c. producing a lot of heat   d. forming gas phase products

Materials needed: • 10 marbles, 10 paper clips, 10 buttons • 2 small plastic jars • Sugar • Saw dust • Spoon Procedure: (Provide documentation in a separate page) 1. Place equal number of marbles, paper clips and buttons in jar A and jar B. Add a spoonful of sugar and a spoonful of saw dust only in Jar B. 2. Cover each jar and shake to mix the contents. Observe each jar. Complete the table below: Jar Items mixed together How do the different materials in the jars look like after they were mixed?

2) Which of the following is intensive property? A. The amount of energy produced upon burning gasoline. B. The cost of gasoline. C. The temperature at which ice melts. D. The air pressure in a tire. E. The humidity of the atmosphere.

Electroplating a metal is an example of physical change. Select one: True False

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4) A bottle containing numerous pieces of an unknown metal was left on the counter in lab. After a bit of investigation, it was deduced that the metal must be one of three pure elements: magnesium, iron, or silver. A student worker dropped a piece of the metal into a copper (II) nitrate solution and observed that after several minutes the blue color of the solution faded, and the metal was coated with a reddish-brown material. Next, the student dropped another piece of the metal into a zinc nitrate solution. This time, no significant changes were observed. a. Develop a flow chart that matches the steps performed by the student worker and will allow identification of the unknown metal. Mg, Fe, Ag