sodium is not kept in  a  petrol  b  k oil  c  n hexane d  water

Q: (c) CN (aq) + CIO2(aq) H2O(1I) CNO (aq) + → H*(aq) CI (aq) +

A:

Q: A strip of aluminium weighing 0.789 g is heated from 26.1 0(C to 45.8 0(C. What is the q

A: Given data: Mass of Al strip = 0.789 g Temperature T1 = 26.1o C  Temperature T2 = 45.8o C Formula…

Q: A. MELTING ICE B. BURNING MATCH C. SAND AND SALT MIXING E. WATER FROM F. STEAM D. MILK GOING SOUR…

A:

Q: 8. Most elements on the periodic table at 25°C and 1 atm are (choose all that apply) a. conductors…

A: All the chemical elements of the periodic table can be broadly divided into three categories,…

Q: A baby's spoon with a surface area of 6.25 cm² is plated with silver from AgNO3 using a current 2 A…

A: Given : Surface are of spoon = 6.25 cm2  Current = 2 A And time = 2 hr 25 min = 145 mins…

Q: Classify each change as physical or chemical. (a) the rusting of iron(b) the evaporation of…

A: Physical change changes the size, shape or phase of substance, Chemical change is a type of change…

Q: What type of metal is this? Aluminum, Copper, Lead or Iron?

A: Specific heat of metal in cal/g˚C is 0.220 Specific heat of metal in J/g˚C is 0.920.

Q: If the price of gold is $1,254 per ounce and the exchange rate is $1 = €0.8925, how many Euros (€)…

A: It is based on basic unit conversion formula based solution. All you need to do is change 100 kg…

Q: Substance Mass (g) Color Taste Flammability 1. Salt 2. Sugar 3. Water

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: a

A: Dear student I have given answer to your question in the image format.

Q: M JORF| = M pl=

A: The question is based on the concept of PH and pOH calculations.   pH is defined as negative…

Q: 4. During diffusion, particles move from an area of high concentration to  A. nowhere they stay in…

A:

Q: C(s) + H20(g) = H2(g) + CO(g)

A: For which of the following reactions, Kp =KcRT has to be identified.

Q: a) FeCl3 (aq) b) CuSO4(aq) c) NiCl2(aq) O a) 10 F b) 2 F c) 12 F O a) 3 F b) 1 F c) 2 F O a) 3 F b)…

A: The questions based on Faraday's first law of electrolysis.   it states that mass of an element…

Q: A contractor has 215 bags of cement. Each bag weighs 25.0 kg. How many tonnes of cement does the…

A: Often while calculating, there is a need to convert units from one system to another system. The…

Q: b,PO, wi (aq) (s) (g)

A: Given compound is Rb3PO4 . Chemical name of  Rb3PO4  is Trirubidium phosphate .

Q: Classify each property as physical or chemical. (a) the tendency for platinum jewelry to scratch…

A: ANSWER

Q: A) Which term describes the conversion of substances into different substances? ionic bonding…

A: Conversion of one type of substances into other substances is take place through a reaction.

Q: A) O B) S C) Se D) Te E) Po

A: On going down the group, the atomic radius increases.

Q: 4. How do you distinguish a. Chemical properties from physical properties b. Distillation from…

A:

Q: Engineering materials are materials utilized in the development of new technologies. (A) True (B)…

A: Engineering materials are group of materials that can be used in construction of man-made structures…

Q: (c) (i) Ph,NH (ii) Et,NH (sealed tube) CI Ph

A: We have to give the structure of the product as follows in step 2:

Q: 180 1. "OH OCH3 2. H* 180 18OH OH 3 1 A. 1 only В. 2 only С. З only D. 1 and 2 E. 1 and 3 F. 2 and 3…

A:

Q: How many grams of iron (density = 7.87 g/mL) would occupy the same volume as 96.4 g of aluminum…

A: We know that : density, d = Mass, m/Volume, V  Or, d = m/V  Or, V = m/d ...(1)  In case of Al, m =…

Q: A geochemist measures the concentration of salt dissolved in Lake Parsons and finds a concentration…

A: It is given that,       Initial concentration of salt dissolved in        Lake…

Q: Fossils show that humans have existed

A: By studying the fossil record we can tell how long life has existed on Earth, and how different…

Q: What is the maximum amount of silver in grams that can be plated out of 4.8 Lof an AGNO, solution…

A: Given volume of solution = 4.8 L density of solution = 1.01 g/ml

Q: 16. What is 20.0 °C in K and "F? A: 293.2; 68.0

A: The temperature 20.00C is to be converted to other scales of temperature.

Q: 1. Which refers to the motion of charges from one place to another? b. Electricity 2. Which of the…

A:

Q: Draw the product of each reaction.

A: A primary alkyl halide reacts with sodium cyanide in order to form an alkyl cyanide. This alkyl…

Q: Which of the following is NOT included in Section 9: Physical and Chemical Properties (A) Chemical…

A: The correct option is:

Q: Classify each change as physical or chemical.a. Sugar burns when heated in a skillet.b. Sugar…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: You wish to prepare 222 grams of 21.2 % Ca(CH3CO0)2. You will need grams of calcium acetate and mL…

A:

Q: A) H.PO. B) H:PO. С) НРО D) H:CO H:PO, +H HPO. +H* PO + H* HCO + H

A: We wil identify intracellular buffer

Q: Classify each property as physical or chemical. (a) the tendency of silver to tarnish(b) the shine…

A: Physical property is the characteristics of matter that is not associated with a change in its…

Q: 1. XY,(aq) + T(s) –– > TX(s) + Y(s)

A: Given: A chemical reaction.  To find : Balanced chemical equation and type of reaction.  Solution :…

Q: Water is classified as a(n) a. atom. b. element. c. mineral. d. compound.

A: Is water is atom, element, mineral or compound has to be given.

Q: Classify each property as physical or chemical. a. the boiling point of ethyl alcohol b. the…

A: Physical property: Property of material which can be obtained without disturbing identity of…

Q: Net 7. 3N Balanced Unbalanced 3 N Net Force: 9. 6 N+ 3 N > Net Force:

A:

Q: 5. In an experiment, you would want to separate the mongo beans from water? What process of…

A: Since you are posted with multiple questions. As per the rule, I am answering first question only.…

Q: Mntt + Fe ot+HeO +2 Mn04 + Fe

A:

Q: 6. Catalisis básica Br Catalisis ácida

A: Step -1 In presence of  Catalisis basica  alkylation will happen  Step-2 In presence of Catalisis…

Q: (b) 1. KMNO. NAOH, A 2. Но

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: A 31.8 g wafer of pure gold initially at 69.8 °C is submerged into 63.7 g of water at 26.9 °C in an…

A: According to the principle of calorimetry principle, heat loss from one object is equivalent to heat…

Q: १ १कजाdपior oप्टवox পeवcमन्No s o ০Xवीरटठ न० No Cmd fes+ छि गबबेपव्टd क० Fe2t . Conmpee व्ल bवकee…

A: The given redox reaction is: NO+Fe3+→NO3-+Fe2+

Q: In the laboratory, what would you use for the following? (a) To measure the temperature of water…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: 1. EtLi 2. aq H*

A: The product of the given reaction is

Q: Which of the following used to be more precious than gold or silver, due to difficulties in refining…

A: The metal more precious than gold or silver, due to difficulties in refining is given below.