1) potassium phosphate with copper (II) acetate - 2) sodium sulfide with iron (III) nitrate - 3) cesium hydroxide and chromic acid,

Q: 1. All the following are methods for preparing iron (II) oxide except . ......... a. Reducing red…

A: Given reaction is :  All the following are methods for preparing iron (II) oxide except…

Q: he following substances are given: ammonia, oxygen, platinum and water. Write equations for the…

A: Let us discuss the process of nitrous oxide formation.

Q: Draw electron configurationsfor fluorine,nitrogen, sulfur,carbon and oxygen. Predict the possible…

A:

Q: 21. Write the net ionic equation for the reaction of silver perchlorate with barium hydroxide.

A:

Q: I + Cr,0,- Cr" + I, + H2O (acidic)

A: The given redox reaction is  I-+Cr2O72-→Cr3++I2+H2O Oxidation half reaction I-→I2(as oxidation…

Q: Why does sulfuric acid not dissolve copper, but nitric acid does?

A: The species with a higher oxidation potential easily dissolves in the solvent that has a higher…

Q: what is an element that exhibits oxidation states of  -1, +5 and +7.

A: Oxidation is the process that involved the loss of electrons and oxidized to cation whereas…

Q: Define the term Metallurgy?

A: The term metallurgy has to be defined.

Q: What are the oxidation numbers of the elements in the nitrite ion?

A: The formula for nitrite ion is NO2-.

Q: What type of oxide ore is formed when nonmetals combine with oxygen?

A: Non-metal reacts with oxygen to form oxide which is a nonmetallic oxide.

Q: Write and balance the equation for the combination of ammonia gas with solid copper(II) oxide to…

A: Balanced chemical reaction: A chemical reaction is always balanced in terms of charge and element.…

Q: Give some physical and chemical properties of Ferrous Oxalate

A:

Q: The metal ions of analytical group IIA are precipitated as Select one: O a. Halides O b. Hydroxides…

A: Metal precipitate depand group reagent of group

Q: An ore containing magnetite, Fe3O4 was analyzed by dissolving a 1.5419 g sample in concentrated HCl,…

A:

Q: Predict the products of the following reactions. S. Aluminum in an aqueous solution of silver…

A:

Q: Heating Sulphur powder with iron fillings then adding dilute hydrochloric acid to the product.. ...…

A:

Q: Why hydrogen sulfide needs to be removed in acetylene gas by passing through copper sulfate?

A: Preparation of acetylene:

Q: Titanium (IV) exists in aqueous solution but not as the Ti4+(aq) ion. Suggest the identity of the…

A: Titanium exhibits +2, +3 and +4 oxidation states. It is extracted from an ore which consist of…

Q: A sample of 70.5 mg of potassium phosphate is added to 15.0 mL of 0.050 M silver nitrate, resulting…

A: The molecular equation for the reaction between potassium phosphate and silver nitrate is to be…

Q: Write the equations for the reaction of Group II cations with H2S and give the color of each…

A:

Q: Upon oxidation, calcium (Ca) compounds give

A: The answer is option ( A) Brick red color

Q: What is the oxidation number of Fe in: FeOOH Fe2O3 Fe3O4

A:

Q: When hydrogen sulfide gas is bubbled through a solution of lead (II) nitrate a black precipitate of…

A: A balanced chemical equation states that the number of elements in the reactant side is equal to the…

Q: ii. How many grams of solid tin will be formed? Calculate the approximate* pH of the final solution…

A: from the balanced equation moles of required species can be calculated and moles of hydrogen ions…

Q: PART 3: Complete and balance the reaction below in basic solution:

A: The given redox reaction is as follows: A redox reaction is balanced by balancing the mass and…

Q: What tests would you use to identify a solution of FeCl3?

A: FeCl3  – is colour of solution, FeCl3 solution has yellow colour.

Q: Write equation for the reaction of: (i) Iron with steam(ii) Calcium and potassium with water

A:

Q: What is the net ionic equation for whenever sodium sulfide reacts with lead (II) acetate??

A: Lead(II) Acetate reacts with Sodium Sulfide to give a precipitate of Lead (II) sulfide and an…

Q: Is Cobalt (s) able to react with water (either at room temperature or heated)?

A: cobalt is a transition element of d- block,  it have moderate reactivity, it can react with acids…

Q: Write the balanced molecular and net iconic equation for the reaction. Tin with hydrochloric acid…

A: A balanced chemical equation in that all the ionic compounds are expressed as molecules instead of…

Q: Specify the oxidation state of the metal ions in the product

A:

Q: define catenation?

A: Catenation is defined as the self linkage property of any atom. It means atoms have tendency to…

Q: What is the oxidation state of cobalt (Co) in Col2?

A: The compound given is CoI2  Since there are 7 valence electrons in I. Hence it will take 1 electron…

Q: An impure sample of Na2SO4 weighed 1.562g. A BaSO4 precipitate from this sample weighed 2.496g.…

A:

Q: Explain the process of standardizing solution of silver nitrate using hydrochloric acid.

A: We need to standardize a solution of silver nitrate using hydrochloric acid. For this, we are…

Q: What is the oxidation number of the metal in [Rh(NH3)5Cl](NO3)2?

A: The oxidation number of the metal in the complex is must balance the charge that is due to the rest…

Q: Does metallic tin react with HCl?

A: The metals react with acids to form salt and liberate hydrogen gas. Tin (Sn) is a group 14 element…

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: Sodium carbonate in a Aqueous solution, reacts with iron hydroxide soild: Predict products and write…

A: The reactants are sodium carbonate [Na2CO3] and iron hydroxide [Fe(OH)2]. Chemical equation is the…

Q: What is the charge (oxidation state) of the cation in calcium peroxide?

A: The formula for the calcium peroxide is given below,CaO2

Q: The presence of phosphorus forms this color of precipitate O white violet O yellow O green

A: generally, phosphate salts are insoluble in water and precipitated

Q: Balance the following chemical reaction. Give the sum (one number only)…

A: A chemical equation is the short form notation of a reaction. In a balanced equation the reactant…

Q: Write a balanced equation for the reaction that occurs when a) solid calcium carbonate reacts with…

A: In a balanced reaction, there must be an equal number of atoms of all elements on both sides of the…

Q: The determination of the impurity of sulfates in potassium chloride, potassium iodide is carried out…

A: Generally, impurities are removed from the making of the precipitate.

Q: What is the most stable oxidation state of chromium in acid and base?

A: In acid chromium in +6 oxidation states more stable (CrO4 -2)

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.