If copper sulfate (CuSO4) produces a green flame, what flame color would lithium sulfate produce if you found lithium itself to produce red and orange flames?

Q: Using thermodynamic data from the Thermodynamic Data table, calculate AG° at 25°C for the process 2…

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Q: (1) A metal that gets covered with a protective film of its oxide (Al, Cu, Ag)(2) A metal which…

A: 1) Aluminium metal gets covered with a thin protective layer of aluminium oxide.

Q: The standard enthalpy change for the following reaction is 804 kJ at 298 K. TiCl4(l) Ti(s) + 2…

A: The "enthalpy change" always reflects the heat energy which gets out (absorbed) or gets absorbed…

Q: Cesium tends to be the most reactive of the stable alkali metal. What atomic property of radioactive…

A: Cs is considered to be a radioactive metal. It is larger in size and its reactivity is very high. If…

Q: Rank the following elements that make up the majority of Earth's crust according to increasing…

A: Ionisation energy of any element is the energy required to remove an electron from the gaseous phase…

Q: Calculate the quantity of heat in kJ, associated with a 33.5oC decrease in temperature in a 5.85 kg…

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Q: Calculate the quantity of heat in kJ, associated with a 33.5oC decrease in temperature in: 1. A…

A: Given . Mass of aluminum ( m)   =  5.85 Kg                                          = 5.85 × 103…

Q: 1.Which compound is used in respirators since it reacts with CO2(g) to produce O2(g)? a.RbO2 b.CsO2…

A: The compound which converts carbon dioxide into oxygen and makes respiration easier will be used in…

Q: Fertilizers commonly contain compounds of which element? a) nitrogen b) aluminum c) fluorine d)…

A: Fertilizers are the chemical substances that provides to the crops or plants to increase their…

Q: Given the reactions, X(s) + 0,(g) – XO(s) AH = -532.9 kJ %3D XCO,(s) XO(s) + CO,(g) AH = +290.3 kJ…

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Q: What are the products of K2SO4 and FeCl3?  How do you balance this equation?

A: • We need to determine the products of K2SO4 and FeCl3 and balance the chemical equation.

Q: How many electrons are in the valence d orbitals in thesetransition-metal ions? (a) Co3+, (b) Cu+,…

A: (a) The electron configuration of cobalt is [Ar]3d74s2. Cobalt loses three electrons to become Co3+.…

Q: Is the reaction of rubidium with water more or less vigorous than that of sodium? How does the rate…

A: The chemical reactivity indicates the readiness of a compound to take part in a chemical reaction.…

Q: sketch a diagram showing the formation of energy levels from the valence orbitals for Li, Li2, Li3,…

A: Diagram showing the formation of energy levels from the valence orbitals for Li, Li2, Li3, Li(n). On…

Q: Would you expect rubidium metal to be more or less reactive with waterthan potassium metal?

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Q: Gibbs Free Energy for Nonspontaneous Reactions and Reactions at Equilibrium Consider the given…

A: Ellingham diagram is graph of standard free energy change versus temperature.  More is the negative…

Q: (c) A 10 g lump of tin at 70 °C is put in thermal contact with a 10 g lump of beryllium at 40 °C and…

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Q: Pick an alkali metal and write a balanced chemical equation for the formation of the oxide of the…

A: Oxidation process is process where oxygen gets added up or hydrogen is lost

Q: Salts are formed by a _____ and _____ . When they are exposed to fire they realease energy as a…

A: Inorganic salts are formed by the composition of Metal and non metal, they are ionic compound. The…

Q: Strontium crystal has a mass density of 2.64 g/cm' and a molar mass of 87.62 g/mol Estimate the…

A: Answer is explained below.

Q: The metal which is protected by a layer of its own oxide is ans. Copper Gold Aluminum Iron

A: Given Choices  Copper  Gold Aluminum Iron As we know iron in presence of air (oxygen and moisture)…

Q: 8a) Sketch a diagram showing the formation of energy levels from the valence orbitals for Rb, Rb2,…

A: a). We are given a crystal of Rb The formation of energy levels from the valance orbitals for Rb,…

Q: C(s)graphite --> C(s)diamond

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Q: What ions are present in solution? Write a balanced equation for the reaction of K(s) with H2O(1).…

A: Chemical equation is the equation in which the chemical reaction is represented. All the reactant…

Q: S406 → 2S20;- 6 O 2 4 O 1 O 3

A: The unbalanced skeleton Chemical equation given in the question is - S4O62- -----> 2S2O32- The…

Q: Give reasons, why copper is used to make hot water tanks and not steel (an alloy of iron)

A: Copper is used to make hot water tanks. Steel reacts with steam.

Q: Explain the observation for the increasing stability of the n+2 oxidation state in the heavy main…

A: Answer - A heavy element is an element with an atomic number greater than 92. The first heavy…

Q: Write the balanced equation for the reaction that occurs between potassium sulfide and copper(II)…

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Q: You are given pieces of Zn and Al, and amounts of ZnSO_4 and Al_2(SO_4)_3 solutions. (a) What…

A: A chemical reaction is that in which two or more compounds react with each other to form product(s).…

Q: The standard enthalpy change for the following reaction is 940 kJ at 298 K. TiO,(s) Ti(s) +02(g) AH°…

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Q: Elemental C has one of the highest atomization energies on the periodic table at 717 kJ/mol. Explain…

A: Possible reasons for High ionisation energy are larger effective nuclear charge, smaller size and…

Q: Draw orbital diagrams for the following atoms and ions. Explain a) Sulfer b) Sulfide (2- charge)…

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

Q: How many grams of chromic sulfide will be formed from 1.5 kg of chromic oxide according to the…

A: 2 Cr2O3 + 3 CS2 = 2 Cr2S3 + 3 CO2 This will be the required balanced chemical equation, Given,…

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

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Q: In an ion-exchange process, which ion has a higher affinity for exchange: Potassium ions (K+) or…

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Q: Based on the Ellingham diagram below, which metal is least stable at 400°C

A: Ellingham diagram is the plot of free energy of oxide formation of metals vs temperature. Those…

Q: Question attached

A: An ion is formed by the loss or gain of electron from the atom. If the electrons are gained,it…

Q: In the alkali metal group, the Cesium is less reactive than lithium.

A: To find: Whether the given statement is true or false.

Q: >Explain why metals such as Au and Ag are found in their elemental states in nature, but metals…

A: Given,Metals such as Au and Ag are found in their elemental states in nature, but metals like Na and…

Q: The standard enthalpy change for the following reaction is 804 kJ at 298 K. TiCl4(l) Ti(s) + 2…

A: Since as per the Hess's law, the enthalpy change of any process changes its sign if the reaction…

Q: Bismuth(V) compounds are such powerful oxidizing agents that they have not been prepared in pure…

A: All known elements are placed in the Modern periodic table in increasing order of their atomic…

Q: 2. For each of the following pairs of substances, predict which member of the pair will have the…

A: Substance which has high forces of attraction between the atoms/molecules/ions has high melting…

Q: The dielectric constants of noble gases increase slightly from top to the bottom in the periodic…

A: As we move top to bottom of the group  of nobel gases , size of the nobel gases increases. Thus down…