Q: Chemistry deals with the study of the relationship between electrical and chemical ?:energy is…
A:
Q: Ca,(PO.) + SiO, +C→ CaSiO, + CO + P
A: The given chemical equation is--- Ca3(PO4)2 + SiO2 + C ------> CaSiO3 + CO + P To balance this…
Q: Which of the following is not a property of metals? They are good conductors of electricity. A They…
A: The question is to identify which of the of given properties is not a property of metal -
Q: :CI: O :CI:
A: Tertiary (3°) carbocation is more stable than secondary (2°) carbocation which is more stable than…
Q: [11/1 H ( #1111 Br A lin H
A:
Q: Part 1: Color the 4 blocks of the table a unique shade. Be sure to label each block by its proper…
A: The modern periodic table is based on the increasing atomic number of elements. In the given…
Q: Which of the following is part O glass collection tubes a power source thormo meter
A: Hofmann apparatus used for electrolysing water and it is invented by August Wilhelm Von…
Q: What is the characteristic that distinguishes metals from one another?
A: The characteristics that distinguishes metals from one another is malleability, ductility,…
Q: Silicon Zinc
A:
Q: Which term listed is a property of a non-metal? high density brittle shiny conducts electricity
A:
Q: . ___________ glass fragments into small squares, or“dices,” with little splintering when broken.
A: Tempered glass is made by heating a glass pane above its transition temperature and then rapidly…
Q: 32. In which group do all the elements have similar chemical properties? a) P, S, Cl b) Ag, Cd, Ar…
A: In which set of element have similar chemical properties ?
Q: The weight percent of silicon in six different rock samples, each containing different amounts of…
A: Solution
Q: is ado ded tő r2+ (aa) t (aa) + 2X
A: According to the question, a soluble salt MX2 is added to water in a beaker. The dissolution…
Q: 4.54 Classify the following redox reactions as combination,decomposition, or displacement:
A: Given reactions, (a) P4 + 10Cl2 → 4PCl5(b) 2NO → N2 + O2(c) Cl2 + 2KI → 2KCl + I2(d) 3HNO2 →…
Q: A cubical box with a length of 0.1 m contains le20 02 molecules. What is the density
A: Length of cubicle box = 0.1 m Number of O2 molecules = 1 x 1020 Density = mass ÷ volume
Q: SiCl3 + CF3 OLI F3C Li (2 equiv) Et₂O
A:
Q: а. 2Sr + 02 2SrO b. 2Li + S Li2s c. Cl2 + 2NaBr 2NaCl + Br2
A: you have posted multipart of question as per the guidelines i have solved first three subparts…
Q: 3) You're wandering around and con
A: The integrated rate law equation for first order reaction: log(A) = (-kt/2.303) + log(Ao) here, A is…
Q: Name two ways in which the metals shown here differ in generalappearance from the nonmetals.
A: Pure substances are divided into two categories which are metals and nonmetals. These elements…
Q: Phosphorus 2 H¿O(t) + O,g) D E F H C;H12 N;(€) → N¿(g) H I„(1) → I,(g) H,O(f)
A: (D) it represent the 3D representation of saturated hydrocarbon . (F) It represent the…
Q: он OCH3 (a) (b) (c) (d) (e)
A:
Q: In addition to iron, stainless steel contains:(a) nickel and chromium(b) Copper and tin(c) aluminium…
A: An alloy is a combination of a metal with at least one other metal or nonmetal. The combination must…
Q: h. Fe Sis) +HCl cag) Fech
A:
Q: d) NaCN CI CI e) HO CD3 CI 1) 1. NaOH 2. HOCI
A:
Q: (d) Br tok
A: The above reaction will most likely to proceed through E2 mechanism where E2 stand for bimolecular…
Q: Manganese Sulfate + Aluminum Phospate
A: Given incomplete reaction is : Manganese Sulfate + Aluminum Phosphate ------------> ?…
Q: Chromium an Nickel metals in stainless
A: 1. Chromium metal effects on human body: Hexavalent chromium complexes can be irritate the nose,…
Q: Luminosity is measure by Kelvin O True O False
A: In a unit time,the elecromagnetic radiation emitted by the star galaxy etc ,is called luminosity and…
Q: O red blue
A: Complementary colour of green is red . So the light is absorb the red colour.
Q: CN OMe 2) 3) Br
A:
Q: i) K. ii) : N. ii) Li. i) :B: り:0:
A: Lewis structure: Lewis's bonding theory is based on the octet rule. The Lewis structure is a…
Q: Which methods separate a mixture according to the size of the particles? distillation and…
A: Given: To identify the methods which separate the mixture based on the size of the particles.
Q: The uses of elements depend on their propertie Iron in cooking p Carbon im wood
A: We use elements according to their properties in certain areas. We can look at the properties of…
Q: Classify these properties of the metal lithium as physical or chemical. Physical Chemical
A: In the given question we have to classify the physical and chemical properties of lithium metal.…
Q: Ca(NO3)2 1
A: To get Total number of atoms we should multiply the stoichiometry coefficient to the index. Total…
Q: Cú Li CI
A:
Q: CsI SrO RbF SrF,
A: The lattice energy of a crystalline solid is the amount of energy released when ions are combined to…
Q: f copper Ja Copper
A: The amount of heat absorbed or liberated can be expressed as follows: Q = mc∆TQ = Amount of heat…
Q: 3 In determining the densitty OF a rectangubr metal táry a Student made the Follocang megsurements:…
A: Answer is explained below.
Q: A magnet is any object that attracts the metal iron. O True O False
A: Interpretation - To tell about true and false that a magnet is any object that attracts the metal…
Q: 1. CH;COCI (c) 2. H2, Pd/C 3. NBS, ROOR
A:
Q: Neon
A: The elements in the periodic table are arranged in the increasing order of their atomic numbers.…
Q: B C +1 n=1 D n=2 n=3 n=4 n=5 n=6 O A O B O C O D
A: Use formula from Bohr model to find energy- E = -2.17×10-18[(1/nf)2-(1/ni)2 ] Where nf is the…
Q: 14 14 4. 6C7N+ O a. 14 O b. 0 1H OC. 1e 0 Od le d. 1N
A: To solve this problem we have to complete the given radioactive reaction .
Q: Which of these is a property of metals? O It's very brittle It's malleable O They are used in food O…
A: Metals :- Solid substances which can form cations readily by losing electrons and form lattice in…
Q: ct one: a. III, II, IV, I b. III, IV, II, I H 1 = NH₂ || IV NH2₂
A: Here more the lone pair on nitrogen are free for donation more stronger is the base and least is its…
Q: The distance between two atoms was determined to be 11.4 nm. What is this distance in centimetres?…
A: Distance is measured in different units. For example nanometre (nm), picometre (pm), centimetre…
Q: A Сopper Zinc Brass Glycine Helium D E F Mercury Saline Ammonia H Hydrogen peroxide Propane Platinum
A: Here we see brass is in face centered cubic unit cell (FCC). And most important it is in solid…
Q: plue carbon green carbon
A:
Step by step
Solved in 2 steps
- What are the quality control test used for magnesium citrate solution?Give clear handwritten solution on white paper..Why are the results of flame tests for the alkali metal ions difficult to distinguish? (Choose all the correct answers) A. Some metal ions are very toxic and not safe to test. B. Almost everybody sees and describes colors differently. C. Burning a wood stirrer will cause an orange flame. D. Not all metal ions give flame colors. E. Not placing the sample in the hottest part of the flame may give bad results. F. Nichrome wire will always produce a trace of orange/yellow color in the Bunsen flame.
- What safety precautions are neccessary with the disposal of selenium selenite and when handeling? Preparing to make a selenium solution with water.Zone refining is used for the:(a) concentration of an ore(b) Reduction of metal oxide(c) Purification of metal(d) Purification of an oreWhen performing gravimetric analysis, ______ is used to obtain larger crystals with fewer impurities. A) occlusion B) inclusion C) isomorphous replacement D) digestion E) post precipitation
- Why are metals resposbile for the production of colour upon heatingWrite short notes on:a. Acid refractories b. Basic refractories c. Neutralrefractoriesd. Fire clay bricks e. Silica bricks"After standardization, silver nitrate must be stored in amber bottle and at room temperature with proper ventilation." True False
- swot analysis for saudi ceramics.Which of the following will cause an instrumental deviation in Beers Law? I. stray light II. unclean optics such as mirrors, lens, and lamps III. fingerprint on the clear area of the quartz cuvette IV. mismatched cell A. I, II, and III only B. I, II, III and IV C. I and III only D. II and IV onlyA prospector wants to know how much gold is in the ore that he has been mining. A sample weighing 11.2456 grams is dissolved in Aqua Regia (a mixture of HCl and HNO3). That sample is then transferred to a 200.00 mL volumetric flask and diluted to the mark with water. This is called solution 1. A volumetric pipet is used to transfer 10.00 mL of solution 1 to a second 500.00 mL volumetric flask. The second flask is filled to the mark resulting in solution 2. 5.00 mL of solution 2 is analyzed and found to contain 13.45 ppm Au. Answer each of the questions below. 1. What is the concentration of Au in solution 1. The units should be ppm 2. How many micrograms of Au are in the 5.00 mL sample that was measured? 3. How many micrograms of gold were in the 500.00 mL flask containing solution 2. 4. How many grams Au were in the flask containing solution 1 5. What is the %Au in the original sample?