* ?What is used to test for chlorine A a glowing splint O B damp litmus paper O C limewater D potassium manganate(VII) solution

Q: 96 Report Sheet • Activity Series 6. Complete and balance the following: the lowest energy level for…

A: Please find below the complete reaction Mg(s) + O2 (g) ---> MgO (s)…

Q: Consider the figures above , which most likely to be silicon doped with Galium? * A B D В O c

A: Which likely Si doped with Ga?

Q: What is the oxidation state of H in lithium hydride (LiH)

A: Interpretation-  To tell about the oxidation state of H in the lithium hydride (LiH ) .…

Q: The alkali metals play virtually the same general chemical role in all their reactions. (a) What is…

A:

Q: What will you use (OA or RA) to make possible the following reactions ? OA= Oxidising Agent ,…

A: Given Reaction a)   NO3 - → NO2-b)   FeO → Fe2O3

Q: Complete and balance the following:(a) As(s) +excess O₂(g)→ (b) Bi(s) excess +F₂(g) →(c)…

A: The balanced equation is an equation representing a chemical reaction, which has the balanced mass…

Q: Using the idea of dobereiner’s trades, what conclusion could have been made about magnesium

A: According to dobereiner’s trades, average atomic mass of first and third elements give the atomic…

Q: Question six

A: Reduction of Nickel (II) oxide to Nickel Metal:

Q: Would you expect salts of the gold(I) ion, Au+, to be colored? Explain.

A: The presence of a partially filled d orbital is responsible for the coloration in ions because of…

Q: eglell 21 The least basic oxide of Pb0 and PbO2 is the one of lower oxidation state TA F b

A: Proclamation - 1 : PbO2 is an oxidizing specialist and decreased to PbO.  Pb(IV) in PbO2 acquires…

Q: A sample of an industrial waste water is analyzed and found to contain 25.8 ppb Cr2+. How many grams…

A: Parts per billion (ppb) :-  The number of parts of solute present billion (109) parts by weight of…

Q: If copper is able to displace magnesium, and magnesium is able to displace lead, what does this mean…

A: From the given data we can infer that , Copper is more reactive than magnesium , and Magnesium is…

Q: f potassium phospha ith or(II

A:

Q: This elements produced bright yellow flame when used in fireworks. * Ве Ca O Sr Mg Group 2 elements…

A: Answer Q=1 which element produce bright yellow flame when used in…

Q: how do you seperate startch and water. someone poure iodine  on a sheet and the sheet got black…

A: Separation procedures are methods for separating two distinct phases of matter, such as liquid and…

Q: Describe some uses for (a) calcium and its compounds, and (b) magnesium and its compounds.

A: There are many  uses for (a) calcium and its compounds, and (b) magnesium and its compounds.

Q: (a) What are the common oxidation states of the halogens?(b) Give an explanation based on electron…

A: To explain the oxidation state of the halogens

Q: rank the following atoms in. order of increasing electromagtivity N F C B

A: • The given elements are ,  N ( Nitrogen,atomic number =7 ), F ( Fluorine, atomic number =9 ), C (…

Q: 5. The table below shows the elements in the third period of the Periodic Table, the number of…

A: Elements have the tendency to attain stability by loosing or gaining electrons. In stable form…

Q: How many kilograms of rutile are needed to produce 95 kg of Ti?

A: The chemical equation for the formation of Titanium (Ti) from rutile (TiO2 ) is as follows:…

Q: A 5.000 g of metal ore is dissolved in 20.000 mL of acid (density 1.840 g/mL). The mass of the…

A: Mass of metal = 5.000 g Volume of acid = 20.000 mL density of acid = 1.840 g/mL Calculation of mass…

Q: Complete and balance the following:(a) NaHSO4(aq)+ NaOH(aq) →(b) S₈(s) +excess F₂(g)→ (c) FeS(s)…

A:

Q: Name an alloy of:(i) Aluminium used is construction of aircrafts(ii) lead in joining metals for…

A: (i) Duralumin is the aluminium alloy used is construction of aircrafts. Composition of duralumin is,…

Q: 8. Write equations for the reactions of Strontium hydride and radium peroxide with water. а. b.

A: Alkaline earth metals are chemical elements in group 2 of the periodic table. Group 2 elements are…

Q: Why ZnO appears yellow on heating?

A: The interruption of patterns in the solid crystal leads to the formation of defects.Stoichiometric…

Q: What is used to test for chlorine? * A a glowing splint B damp litmus paper O C limewater

A: what is used to test for chlorine has to be given,

Q: Lithium reacts violently with water to form aquoeous lithium hydroxide and hydrogen gas. Do you…

A: When lithium undergoes reaction with water then it forms lithium hydroxide and hydrogen gas The…

Q: Burning of Magnesium with Oxygen produces white flame color and forms _.   a. MgO  b. O2   c. H2O…

A:

Q: Write a chemical formula for each compound or ion,and indicate the oxidation state of the group 5A…

A: Solution: a)Phosphate ion: Chemical formula of phosphate ion is PO43-. Phosphorus (P) is the 5A…

Q: Why is Group I elements known as the most electropositive element?

A: Electropositive nature of the elements is determined by their ability to lose the valence electrons.…

Q: One of the steps for refining silver involves converting silver into dicyanoargenate(I) ions:…

A: Balancing of reaction – A chemical reaction involves reactants and products. According to law of…

Q: Which of the chemicals is necessary for halogenation?   a AlCl3   b SnCl2   c CuCl2   d NBS

A:

Q: A silver nitrate solution contains 8.64 g of primary standard AgNO, (MM = 169.87 g/mol) in 1.00 L.…

A:

Q: MCQ 119: When magnesium is burnt on Bunsen burner it gives flame of color A. bright white B. off…

A: In this question we have to find out the color of flame when the Magnesium is burnt on Bunsen…

Q: How is elemental silicon obtained by aluminothermy method? Explain with the reaction equation.

A: Aluminothermy method or Aluminothermic reactions are those chemical reactions in which aluminium is…

Q: ric acid was added to this solution, which precipitated 2.93 of the lead was precipitated, what is…

A: The question is quantitative estimation of percentage  tin present in the given alloy. we calculate…

Q: AgBr + GAPO, →_Ag,PO, + GaBr, AIBr, + K,SO, → _ KBr + Al,(SO,),

A: The question is based on the concept of balancing the reaction    in first step of any calculations,…

Q: When the Nickel (II) ion reacts with ammonia, most students notice a colour change occurring. Can…

A: Reaction of nickel with ammonia Nickel(II)-ions are precipitated by ammonia as a green…

Q: Which is a zinc ore and is used in paints, sunscreen and coins? A. Anhydrite B. Bauxite C.…

A:

Q: The oxidation state of Cr in Cr,0;¯ is: Select an answer and submit. For keyboard navigation, use…

A:

Q: Which of the following gases contain a halogen? O HS O NO, O He O Co O HCN O HF O CI, O N,O Ar o, Ne…

A: According to the periodic table, halogens are members of group 17 .  Elements of halogen groups are…

Q: Why do Iodine crystals cause carbon tetrachloride solutions to change its colors? And why it (iodine…

A:

Q: Explain Halogenation ?

A: Halogenation is the term used for the reactions that involve the incorporation of halogen atom, such…

Q: What and the three chemical properties of halogens?

A: Halogen family is the group of elements that is present in Group VIIA of the periodic table.  The…