Q: 9. Complete and balance the following equation (include correct physical state of each product)-…
A:
Q: Differentiate between a mineral and an ore.
A: In chemistry, isolation is a very important topic to study. This topic provides the information that…
Q: Which one of the following elements is an example of a transition metal in period 4? а. Carbon O b.…
A: Transitions metals are also known as d-block elements. These are present in the middle of the…
Q: Describe the properties of metals that make themuseful for making jewelry.
A: The elements which forms a cation easily is known as metal.
Q: Describe the general characteristics of metals.
A: Introduction: In the periodic table, all elements can be classified into three categories, 1.Metal:…
Q: Write the balanced equation of the reaction between Al and oxygen in the presence of heat. 4.…
A: In the given question we have to write the balance equation of the following reaction. 3. Aluminium…
Q: lanthanide ion lan
A: The Horrock's equation is expressed as: q=AkH2O-kD2O-B Where, A and B are the proportionality…
Q: What is a heterogeneous alloy?
A: Alloy is a mixture of metals, which are formed via mixing of the molten metals. Example = Brass is…
Q: Which of the following set of elements contain only type II metals? O Na, Ca, Mg O Mn, Cd, Co O Ni,…
A:
Q: Which three steps need to be taken for the synthesis of elemental transition metals
A: Transition metals Elements that have (or easily create) partially filled d orbitals are known as…
Q: 7. What are the properties of metals? O A. Have shiny lustre, various colours (although most are…
A:
Q: (a) List four physical characteristics of a solid metal. (b) List two chemical characteristics of a…
A: PHYSICAL CHARACTERISTICS: The properties of elements or compounds noticed without any change in the…
Q: 2. This steel is used in railway wheels and tracks, gears, and crankshafts. * O High carbon steel O…
A:
Q: An element has a density of 10.25 g/cm3 and a metallic radius of 136.3 pm. The metal crystallizes in…
A: iven, Density of the solid = d = 10.25 g/cm3 Radius = r = 136.3 pm Lattice = Body centered cubic…
Q: what's the balanced chemical equation of Titanium (IV)butoxide + oxalic acid + ammonia + water ->…
A: A balanced chemical reaction is when the same number of every element is present on the reactant…
Q: 3. The Statue of Liberty consists of copper plates on an iron skeleton. The statue was recently…
A:
Q: 2. The next few questions will ask you to explain the following properties for these three different…
A: Since you have asked a multiple part table, we will fill first 3 rows for you. For remaining table,…
Q: Which of the following elements is tetratomic in its standard state? O sulfur selenium carbon O…
A: The elements given are sulfur i.e. S, selenium i.e. Se, carbon i.e. C and phosphorus i.e. P.
Q: Metal oxides form a basic substance with water. a. True b. False
A: Metal oxides form a basic substance with water ---> True
Q: Explain in detail the process of production of beryllium.
A: Beryllium is a chemical element having symbol Be and atomic number 4 having electronic configuration…
Q: Bricks are used in construction. They are O ceramic materials alloys O composites O polymeric solids
A: Answer is ceramic material.
Q: Differentiate between metal and non-metal on the basis of their chemical properties.
A: Metals are lustrous and opaque elements which are good conductor of heat as well as electricity. And…
Q: Write the chemical formula for a compound containing the follo tellurium and tin, 2:1 O A. SnTe2 O…
A: Tellurium with the chemical symbol Te and atomic number 52 is a relatively rare chemical element. It…
Q: All metallic elements are solid at room temperature except _________. A. sodium B. calcium C.…
A: At room temperature, mercury is not at solid state. Mercury is liquid above 0°C Temperature This is…
Q: Describe how the following changes are brought about: (i) Pig iron into steel. (ii) Zinc oxide into…
A: ( i ) Pig iron into steel: Pig iron is charged into basic oxygen furnace (BOF) and water cooled…
Q: Which one of the following has the smallest radius? a. P b. I c. Fe d. Cl e. Na
A: On going left to right in periodic table radius decreases While on going top to bottom in periodic…
Q: Is Gd considered a F-block element, main group element, transition metal, or halogen? main group…
A: Gd is an atomic symbol of the Gadolinium element and has an atomic number of 64. Gadolinium is a…
Q: Explain silicon.
A:
Q: Write the balanced equation for the reaction that occurs between potassium sulfide and copper(II)…
A:
Q: Sketch the atomic structure of white tin.
A: Atomic structure refers to the structure of an atom comprising a nucleus (centre) in which the…
Q: Which of the following is an alkaline earth metal? A.K B.Cu C.Mg D.Na E.Al
A: The elements that comes in group 2 of the periodic table are called alkaline earth metals. They are…
Q: 4. Why metals are electrical conductors?
A: Metals are good electrical conductors. because there are free held loose electrons are present in…
Q: 5. Explain why metals exhibit the following properties. – page 269 shiny flexible Electrical…
A: Metals are shiny-The positive metal ions are surrounded by pool of electrons. The electrostatic…
Q: Which of these is a property of metals?
A: Metals :- These are minerals which are isolated from the earth crust in the form of alloy ( mixture…
Q: Write balanced chemical equations for the following reactions. boron oxide → boron + oxygen
A:
Q: Cesium has higher melting temperature than Sodium. True or False?
A: Given : We have to tell whether the statement is true or not.
Q: Describe alkali metals?
A: The alkali metals consist of the chemical elements lithium (Li), sodium (Na), potassium (okay),…
Q: which properties of aluminum might concern you if you had to use the aluminum tableware that…
A: Aluminum has a very high affinity to oxygen. When a new aluminum surface is exposed in the presence…
Q: Simplified explanation of nitride and carbon in minerals, simplified explanation of the mechanism of…
A: Explanation- @ Nitride in minerals- In chemistry, a nitride is a compound of nitrogen where…
Q: Some of the properties of metals are: 1. Always Conductive 2. Brittle (rough around the edges) 3.…
A: Given are so.e properties of metals. We need to check if these are all true or false.
Q: II. Given the following material, identify the principal metal that can be extracted from each…
A: Alloy is a mixture of two and more different elements and out of those elements one should be a…
Q: 1. Those features or characteristics of metal that make it useful and distinctive from all others.…
A: A metal is a material that shows a lustrous appearance when polished and is a good conductor of heat…
Q: Bronze
A: Zinc :- In ocean corrosion occurs very fast. So, to protect hull from corrosion zinc is ised as…
Q: Choose one or more: O A. CO,(g) +C(s.graphite) → 200(g) O B. C(s,graphite) +O,(g) –→ Co,(g) O C.…
A: ∆Hrxn is the standard enthalpy of reaction. This is calculated by subtracting the sum of standard…
<p>Describe three typical properties of metals.
Step by step
Solved in 2 steps with 1 images
- magnesium + cobalt (II) nitrate;Balanced chemical equation'Reaction type:(iv) Explain the following observationsWrite a balanced chemical equation for the reaction thatoccurs when (a) Mg(s) reacts with Cl2(g); (b) barium carbonatedecomposes into barium oxide and carbon dioxide gaswhen heated; (c) the hydrocarbon styrene, C8H8(l), is combustedin air; (d) dimethylether, CH3OCH3(g), is combustedin air.
- 1. A 0.9882 gram sample of iron ore is dissolved, the iron reduced to Fe2+, and the solution was titrated with 36.40 mL of 0.02065 M KMnO4 in acid solution. (a) Write the titration reaction. (b) Calculate the %FeO (M.M. = 71.85) in the sample. 2. A sample of primary standard grade K2Cr2O7 (MM = 294.20) weighing 0.2153 g is dissolved, the solution acidified and excess KI added. The liberated I2 requires 44.86 mL of the Na2S2O3 for titration. (a) Write the titration reaction. (b) Calculate the molarity of the titrant solution. Box the final answer.1. A 0.9882 gram sample of iron ore is dissolved, the iron reduced to Fe2+, and the solution was titrated with 36.40 mL of 0.02065 M KMnO4 in acid solution. (a) Write the titration reaction. (b) Calculate the %FeO (M.M. = 71.85) in the sample. 2. A sample of primary standard grade K2Cr2O7 (MM = 294.20) weighing 0.2153 g is dissolved, the solution acidified and excess KI added. The liberated I2 requires 44.86 mL of the Na2S2O3 for titration. (a) Write the titration reaction. (b) Calculate the molarity of the titrant solution.Without consulting any source other than a periodic table, what relative level of toughness would you expect for Ti vs. TiN? Justify your answer based on the probable types of atomic bonding found in these two materials.
- 1. A 0.9882 gram sample of iron ore is dissolved, the iron reduced to Fe2+, and the solution was titrated with 36.40 mL of 0.02065 M KMnO4 in acid solution. (a) Write the titration reaction. (b) Calculate the %FeO (M.M. = 71.85) in the sample.1. A 0.8040 g sample of an iron ore is dissolved in acid. The iron is then reduced to Fe²+ and titrated with 47.22 ml of 0.02242 M KMnO4 solution. Calculate the results of this analysis in terms of (a) %Fe (MW = 55.845) and (b) %Fe3O4 (MW = 231.535). Consider the reaction 5 Fe²+ + MnO4 + 8H+ → 5Fe3+ + Mn²+ + 4H₂O21 ETRY AND REDOX REACTIONS If 20% by weight of nitrogen is present in a compound, the molecular weight of the compound may be (a) 144 (c) 100 (b) 28 d) 140 The mineral haematite is Fe2O3. Haematite ore contains unwanted material called gangue in addition to Fe2O3. If 5.0 kg of ore contains 2.78 kg of Fe, What is percentage purity of Fe;O;? A polystyrene, having formula B33C6H2(C&H3)n was prepared by heating styrene with tribromobenzoyl peroxide in the absence of air. If it was found to contain 10.46% bromine by weight, find the value of n. Hexachlorophene, C13H6C16O2, is a germicide in soaps. Calculate weight percent of each element in compound. Determine the empirical formula of Kelvar, used in making bullet proof vests, if it contains 70.6% C, 4.2% H, 11.8% N and 13,4% O: (a) CHSNO2 (c) CH9NO (b) CHSN20 (d) CHSNO In an organic compound of molar mass 108 gm mol C, H and N atoms are present in 9: 1 :3.5 by weight. Molecular formula can be: CaH&N2 7c) CsH&N 8. (b) CHoN (d) CaHN A…
- 2. The molar conductance of an acidic aqueous solution of [Co(NH)sCO.JNO, changes rapidly with time. Would you expect it to increase or decrease? What values are expected for the molar conductivity (Am) upon complete hydrolysis?The following reactions are all similar to those of the industrial chemicals. Complete and balance the equations for these reactions:(a) reaction of a weak base and a strong acidNH3 + HClO4 ⟶(b) preparation of a soluble silver salt for silver platingAg2 CO3 + HNO3 ⟶(c) preparation of strontium hydroxide by electrolysis of a solution of strontium chlorideSrCl2(aq) + H2O(l) (electrolysis) ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯→In aqueous solution, hydrogen sulfide reduces (a) Fe3 + toFe2+ , (b) Br2 to Br - , (c) MnO4- to Mn2 + , (d) HNO3 to NO2.In all cases, under appropriate conditions, the product iselemental sulfur. Write a balanced net ionic equation foreach reaction.