7.

Q: Which of the following is the best reducing agent? O Ba2+ O Ca(s) O Mg2+ O Mg(s) O Ba(s)

A: We have to choose the best reducing agent among the following given options as follows in step 2:

Q: . C. 6. . 6. . S. .. .. _H3PO4 + КОН → K+ _B₂O3 → HCI + NaOH → C + Na + NaOH + Rb + _C6H6 + S8 → _O₂…

A:

Q: Take notes using a wide range of analytical instruments.

A: Analytical instruments are class of equipments that are used in chemistry for various analytical…

Q: you are designing a rocket engine th uses a mixture of hydrazine and water as a propellant. this…

A:

Q: Where does the 2.303 comes from

A: The multiplier 2.303 comes from the conversion of ln or loge to log10 .

Q: 5. مز : HO 0.

A:

Q: Assume that you have two beakers. One is filled with pure water (blue) and the other contains sugar…

A: The solution which will have less boiling point will boil more easily and hence more quantity of…

Q: The radius of a tantalum atom is 142 pm. How many tantalum atoms would have to be laid side by side…

A: Given: Radius of tantalum atom = 142 pm And total distance given = 2.85 mm.

Q: Write balanced complete ionic equation for CaS(aq) +CdCl2 (aq) → CdS(s) + CaCl (aq). Express your…

A: In net Ionic reaction no of ions should be equal in both side reactant and product

Q: Cite 3 scientists whose works were mostly on the development of the periodic table. Give a short…

A: The arrangement of the elements in rows and column on the basis of their atomic number is termed as…

Q: 7. How many moles of white phosphorus (P4) can you produce from 1 ton of fluoroapatite? O Question…

A: Given: Mass of Ca5(PO4)3F = 1 ton = 1000 Kg = 106 g.

Q: NH4)2CO3 is ……………… ( soluble, insoluble ) salt

A: (NH4)2CO3 is an ionic compound containing ammonium and carbonate ion.

Q: 3. What causes an ice cube to melt when removed from a freezer?

A: Water coverts in ice when it kept at lower temperature (that is less than zero) , it remains in ice…

Q: Critically discuss the relationship between a lithium and justice with real life example. (explain…

A: The relationship between lithium and justice is a multifaceted topic that encompasses economic,…

Q: Given the following data 2 CIF(g) + O2(g) Cl2 O(g) + F20(g) 2 CIF, (9) + 202 (g) C, O(g) + 3F20(g)…

A: Interpretation: From the given reaction, the ∆H of the given equation is to be calculated.

Q: COmplete the equations for these reactions by giving the structures of the products. Assume that the…

A: First NH2 will attack on nucleophilic site which is present in anhydride and then O- will attack…

Q: Mg + O2 --> MgO NazCO3 --------> Na2O + CO2 C3H8 + O2 ------- CO2 + H2O Al + O2 ------> Al2O3 BaCl2…

A: The answers are given below

Q: How do you expresse the volume in cubic angstroms when the atomic radius is 1.76?

A: Given: Atomic radius = 1.76 Ao Note: As, type of unit cell is not mentioned. We are considering a…

Q: 4. Li (s) + Cr2(SO4)3 (aq) > 5. Mg (s) + FESO (aq)> Al (s) + NISO (aq)> 6.

A:

Q: What is true for this chemical reaction:: 16CO₂(g) + 18H₂O(l) = 2C8H18 (1) +250₂(g)? Select an…

A: Given that the reaction is

Q: Object A has a charge of 3.6 × 10 °C and object B has a charge of 4.7 × 10 °C. What is the electric…

A:

Q: You have a 11.5 mg sample of blood that contains various proteins. Hemoglobin is the only protein in…

A: Molar mass of heme (C₃₄H₃₂FeN₄O₄)  =  616.49 g/mol Molar mass of Fe = 55.85 g/mol Each mole of heme…

Q: The radius of a rhodium atom is 134 pm. How many rhodium atoms would have to be laid side by side to…

A: The radius of a rhodium atom is 134 pm. distance = 1.70 mm.

Q: The kinetic energy of subatomic particle is 5.85 x 10-25 J and its mass is 5.1 x 10-31 Kg. What…

A:

Q: 9) An experiment was done in which zinc was reacted with hydrochloric acid in a vessel to make…

A: Since moles = mass / molar mass And mass of Zinc = mass of evaporating dish + zinc ( before the…

Q: Part 1: Color the 4 blocks of the tablea unique shade. Be sure to label each block by its proper…

A: i

Q: Calculate Eºcell (in V) and indicate whether the reaction shown is spontaneous or nonspontaneous…

A:

Q: 50.0 kg mixture of salt and water is 15.0% (by mass) salt. Give the mass of the salt and water in…

A:

Q: Suppose the metallic paper clips (which contain iron) had been replaced by magnesium or nickel.…

A: Ferromagnetism It is a property of substance in which metals act as a permanent magnets. Also it…

Q: An analyst conducted suction filtration for a certain 3.0 gram of solid. After filtration, the…

A:

Q: Using retrosynthetic analysis, propose a reaction sequence for each of the following syntheses. HO…

A: In this question, we will do the retrosynthesis abd then synthesis of the final product.  You can…

Q: 1.Predict the chemical name of B 2. What is the reaction name for the chemical transition of A to…

A: The reaction with products are as shown below.

Q: what is an intensive observation of gold?

A:

Q: The radius of a tungsten atom is 137 pm. How many tungsten atoms would have to be laid side by side…

A: Given :- radius of tungsten atom = 137 pm  To calculate :- number of tungsten atoms in 1.99 mm

Q: Classify each of the following as an element, a compound, or a mixture:  (a) Oxygen (b) Table salt…

A: 1) Elements: any substance that cannot be decomposed into simpler substances by ordinary chemical…