Which of the following used to be more precious than gold or silver, due to difficulties in refining it?   a. Iron b. Copper c. Aluminum d. Zinc e. Tin

Q: 4. Barium sulfate can be produced by the addition of barium chloride to sodium sulfate. a. Write a…

A: Barium sulfate can be produced from the reaction of barium chloride with sodium sulfate.

Q: Rusting steel will form Fe₂O3. However, the protective coatings of galvanized iron and stainless…

A: A question based on corrosion that is to be accomplished.

Q: What is the coefficient for hydrogen in the balanced equation for the reaction of solid…

A: Please find below the reaction taking place  MoO3 + H2 -----> Mo + H2O Balancing  Since in LHS we…

Q: If 2.0 mol of aluminum reacts with 2.8 mol of bromine, determine which of the statements below is…

A: A chemical reaction between aluminum, Al, and bromine, Br2 is given as follows:The number of moles…

Q: 18. How many grams of TiC14 are needed to produce 0.132 moles of MgCl2? 2 Mg + TiCl A. 6.26 g → Ti +…

A:

Q: olve the movement of es electrons is ses electrons, it takes on a and the substance that from one…

A: Loss of electrons is oxidation whereas gain of electrons is reduction.

Q: The equation for the reaction of magnesium with copper(II) Oxide

A: word equation Magneisum+Copper(II) oxide →Magnesium(II)+copper oxideChemical eqautionMg+Cuo→MgO+Cu

Q: Zinc (Zn) metal       in HCl(aq)   Zinc metal before reaction: __________________________…

A:

Q: 55. Although copper can be found in its elemental form in nature, it is often extracted from…

A: •Given:- Copper present elemental form. •It can be also extracted from its compound carbonate or…

Q: Which of the following will prove that copper is appropriate to use in laboratories? a. Al + HCI…

A: Reactivity series tells about the reactivity order of all the metals.  Reactivity series:-  K>…

Q: 5. Titanium metal can be obtained by reducing TiCl, using elemental sodium (Na). Sodium chloride is…

A: First convert mass into molar mass  Then use mole-mole relationship  After getting mole of Sr then…

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: What total mass of iron is necessary to produce 1.00 moles of copper?

A: The balanced chemical equation for the production of copper from iron is shown below this is a…

Q: Suggest how the components of each mixture can be separated. a. Salt and Sulfur b. Copper and Zinc

A: Solution The mixture of salt and sulphur is a mixture of heterogeneous mixture.They can be seperated…

Q: What mass of carbon dioxide is produced when 5.0 g of methane (CH4) combusts with 17.1 g of oxygen…

A: Given:- Mass of methane=5.0 g Mass of oxygen = 17.1 g To find:-Mass of carbon dioxide

Q: what compound (include reaction condition, if applicable) will separate the following pair of ions?…

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

Q: 23. Which of the following statements is false about baking soda? a. Baking soda chemically yields…

A: a. Baking soda chemically yields carbon dioxide in the presence of moisture and alkali.False…

Q: . The flotation process used in metallurgy involves __________. a.chemical reduction b.the roasting…

A: 1) The flotation process used in metallurgy involves

Q: .Write a balanced chemical equation for each of the following: a) elemental copper combines with…

A: According to guidelines, I have to solve only first 3 subparts of 1st question only. we have to find…

Q: Change the following word equation into chemical equation. Write a complete balanced equation for…

A: A balanced reaction has an equal number of atoms of all elements on both sides.

Q: 3)b. FePO4*6 H2O d. CUCN f. CuSO4 * 5 H2O h. Sn(SO4)2 j. Mn(CH3CO2)2 1. Hg(NO3)2 * H2O n. CRSO4 *…

A: Chemical name  of following compounds

Q: Is there a chemical reaction between copper and silver nitrate? Which elements react, and what is…

A: The chemical formula is a short term notation which is used to represent the no. of atoms present in…

Q: How do you measure the amount of heavy metals concentration in soil?

A: Heavy metals refer to any metallic chemical element that has a relatively high density and is toxic…

Q: The oxidation number of sulfur in (Na2S2O5) is?   The answer is ………………………………   10

A: Solution is given on page as below

Q: CaF2 (s)+ H2SO4 (aq)→ CaSO4(s) + HF(g)   b. MnO2(s) + NaCl(s) + H2SO4(l) → MnSO4(g) + H2O(l) +…

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Q: A soil is contaminated with heavy metals. Suggest a method of soil showing to clean the soil.…

A: The continuous increase in industrial activities has contaminated the soil with heavy metals such as…

Q: Sodium nitrate, NaNO3, cannot be analyzed gravimetrically because a. the stability of sodium nitrate…

A:

Q: A student is given a 1.3308 g of an unknown copper compound. Following isolation by displacement by…

A: Given,      Mass of the unknown Copper Compound =1.3308 g      Mass of Copper (Cu) Metal recovered…

Q: Instead of releasing the sulfur dioxide gas produced during metal refining into the environment, a…

A: This answer discusses the potential benefits of converting sulfur dioxide gas produced during metal…

Q: How many mg of iron are present in a 236.5 g ore sample containing 0.15% iron by mass?

A: We need to first calculate the mass of iron present by mass in the given quantity of ore, and then…

Q: You are told that metal X is a better reducing agent than metal Y. This must mean that: O a. X* is a…

A: As we know that, Oxidation-reduction is reversible. The greater the tendency of the forward…

Q: Please use tables given

A: The standard enthalpy of a reaction is the change in the enthalpy which occurs in a system when the…

Q: 28. While synthesizing their ferrofluid a student is short on time and decides to pour 50 mL of…

A: The addition of NH3 in faster makes the larger size particle instead of nano particle.

Q: what chemical test is used to distinguish the two? a. bromine b. molisch's test c. lucas d.…

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Q: 8. Write balanced chemical equations for the following reactions. a. The reaction of gaseous…

A: A chemical reaction will be called balanced when all atoms in reactants and products will be equal.…

Q: What do the results of the litmus test tell us when reacted with magnesium, calcium, lithium,…

A: Litmus test:  If the given material is acidic, the blue litmus paper turns red. If the given…

Q: 80. Sequestering agent for Benedict’s Solution:   citrate tartrate glycerin sulfate

A: Since, you have asked multiple questions, we will solve the first question for you. If you want any…