what metals make up the silver and black blocks Color Prediction Black Silver Metal Density Magnesium 1.74 g/mL

Q: Which of the following techniques does not allow recovery of all components? a. distillation b.…

A: Evaporation is one of the methods by which we can separate out the solute which is soluble in a…

Q: Answer questions 1 +2 using the following info: Metal Approximate Density Gold      19.32 g/cm3…

A: The mass of the metal is 220 g and the volume is 24.5 Cm3 We know that , D= M/V =(220/24.5)…

Q: Calculate the sum of the two weight tests. Then select SUBMIT to check your answer and add the…

A: The calculation given is, => 127.0912 - 127.08942

Q: What is chromatography, and how does it work?

A: Chromatography is a scientific method for extracting constituents of a mixture. The mixture is…

Q: Gas chromatography would NOT be appropriate to use for a sample that is decomposed by heat a mixture…

A:

Q: Chromium (III) sulfate is used for decorative plating. Determine the amount of time in hours needed…

A:

Q: Calculate the volume of liquid in the round flask sketched below. Give your answer in milliliters,…

A: The round flask can be considered as a sphere.

Q: IXing salt and suga

A: There are two kinds of change we can see around  Physical change Chemical change Physical change…

Q: Chem

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Q: Different types of gloves protect against different types of chemicals.   true    false

A: Gloves can be used against hand injuries, exposures, and skin diseases while working with different…

Q: The following item is used in chemistry laboratory. It is called as a glass rod with bulb. Select…

A: The Given chemical labarotary equipment is

Q: common laboratory operations

A: When a chemist works in a chemical laboratory, he/she should be thought to have some basic knowledge…

Q: Page 17: Choose all of the following extensive properties density volume color mass melting point O…

A: A multiple choice question about extensive properties, which is to be accomplished.

Q: Assuming all other values are accurate, what would happen to the experimental value of Rif the Mg…

A: R is a constant .

Q: (7) includes all sources consulted for background reading (a) Abstract (b) Bibliography (c)…

A: The correct answer is reference.

Q: Questions 2 and 3 on the photo please!

A:

Q: A balance high readability is necessarily equated to high accuracy. Select one: a. True b. False

A: Given statement,  A balance high readability is necessarily equated to high accuracy.

Q: C. Metals VS Nonmetals 1. Observe the scenario depicted in every illustration in relation to the…

A: Metals have the following general properties. They are hard They are shiny. They produce sound when…

Q: 45 3.5 3.0 2.5 1.5 1.0 0.5 8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.0 4.0 2.0 F80'7 F-99'0 SO'E T-86'1 ZI -1.31…

A: Given

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A: Rules for writing IUPAC nomenclature for (alkenes) :  1. Longest chain rule : Select the longest…

Q: 7-9 Name the ff:

A: The solutions are given below -

Q: What is Thurstone Scales?

A: The term thurstone scales has to be defined.

Q: floland Morris Part 1: Color the 4 blocks of the table a unique shade. Be sure to label each block…

A: Left most two columns in modern periodic table is known as S block. Right most six columns together…

Q: What does an analytical chemist do in the lab?

A: Analytical Chemistry is a branch of chemistry which deals in determining what type of species is…

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A: In model-1 types of reactions there is a different types of chemical reactions 1. Combination…

Q: Part A pH = 8.77 Express your answer using two significant figures. Enter your answers numerically…

A: Part A  pH = 8.77  pH = -log[H3O+]  Log[H3O+] = -pH  [H3O+] = antilog(-pH) = antilog(-8.77)  [H3O+]…

Q: If your perecnt recovery of copper (in copper lab experiment) is greater than 100% what could be the…

A: Answer

Q: Identify two (2) possible errors during weighing a sample.

A: Weighing balance is the key instrument used in any chemistry laboratory. Slightly handling issue of…

Q: bioassay tests.

A: The question uploaded by you is multiple questions. According to the guidelines, if there are…

Q: A chemist working as a safety inspector find an unmarked bottle in a lab cabinet.

A: Given : Volume of liquid = 0.502 L  Mass of liquid = 469 g

Q: 8. 19.88 km : nm %3D

A: Unit conversion : two equivalent quantity expressed in two different units, related by a unit…

Q: What kind of mixture of substance has Distillation and Chromatography has?

A: There are different type of separation techniques or methods, which are used to separate the mixture…

Q: Which of the following pairs is correctly matched? A hotplate : supplies flame B beaker : measures…

A: The options given are,

Q: In a laboratory 100 mL of phosphorus solution with concentration 1,0 mg/L is needed when the…

A: On dilution concentration changes but no of moles remain same. So, M1V1 = M2V2 M1 = Concentration of…

Q: What purpose does the Artist wheel serve in chemistry? |

A: Artist wheel is the colour wheel, it's importance in chemistry is below

Q: MnO aq) + 2+ + C20laq) → COri) + Mn) А. 2 В. 5 С. 10 D. 16 Е. 15

A: The coefficient of a compound can be determined from the balanced chemical reaction. A reaction will…

Q: Find the volume and density of an irregular piece of the mineral quartz is found to weigh 12.4g. It…

A: According to the question: mass of mineral quartz = 12.4g Volume of water in the cylinder= 25.2 mL…

Q: You determine that your sample has a mass of 386 g and a volume of 20ml it also is fairly unreactive…

A: Mass of sample =386g Volume of sample = 20ml Density = Mass/volume               =386/20…

Q: When using the Dumas Method....   The student filled their 400 mL beaker with 250 mL of tap water…

A: Interpreation: The three sources of error in given experiment are to be determined. Explanation: The…

Q: IUPAC stands for: Select one a Two of the choices b International Union for Pure and Applied…

A: We will write full form of IUPAC in the question.

Q: Select the different types of Chromatography FTIR LC-MS HPLC GC-FID IC ICP-MS IC-MS ICP-OES IC-OES…

A: A question based on analytical separation that is to be accomplished.

Q: Start your trial now! First week only $4.99! Expand Transcribed Image Text Question 3 Study the…

A: The metal which is used for making pennies before 1982 is given below with explanation.

Q: 1) excess Mel NH₂ X D

A: In this reaction , reactant is a primary amine and the reagent is methyl iodide in excess amount.…

Q: Place each number in the corresponding space, ensuring that it is inside the rectangle marker. If…

A: Given first image,

Q: Prepare two graphs, %T vs. Concentration and Absorbance vs. Concentration, using the data for the…

A: According to Beer-Lambert law the amount of light absorbed or transmitted when passed through a…

Q: 5. Nitrate test. Draw a flow chart depicting the nitrate test, results, and interpretation.

A: Brown ring complex formation test is the confirmatory test for nitrate ion (NO2-).