Select all the elementary substances. cobalt (Co) phosphorus tribromide (PBR3) tungsten carbide (WC) ferrous oxide (FeO)

Q: Draw and label an atomic/molecular level picture of the binding in silicon that can be used to…

A:

Q: Part A Choose a ratio showing the relationship between the amounts of each element for each of the…

A: • Part A :           •   Correct option is   3O : S  Here three fragments are present. Each fragment…

Q: Rank barium manganese oxygen silicon and nickel from highest to lowest ionization

A: Solution Ionization energy is easy terms will be delineate as a live of the problem in removing AN…

Q: Predict the products of the reaction below. That is, complete the right-hand side of the chemical…

A: The objective of the question is to predict the products of the given chemical reaction and ensure…

Q: Which balanced chemical equation below corresponds to the law of mass action expression: [A]²[C]…

A: The question is based on the concept of law of mass action. we need to write proper equation for law…

Q: Why does the following reaction take place B₂O₃ + 3Mg → 3MgO + 2B   Does it have to do with the…

A: Answer:- This question is answered by using the simple concept of chemical reaction metals ands and…

Q: Since the rate of ozone destruction depends on [Cl], can Cl be considered acatalyst for the reaction…

A: CFC molecules are made up of chlorine, fluorine and carbon atoms and are extremely stable. This…

Q: The earliest Earth had an atmosphere loaded with CO2 in an intense greenhouse climate. Explain where…

A: Carbon dioxide is a colourless substance with a density nearly 53 per cent greater than that of dry…

Q: Predict the products of the following reaction. If no reaction will occur, use the NO REACTION butto…

A: Given is inorganic reaction. Sr is symbol of strontium. Strontium is group 2 metal.

Q: Can Hydrogen be turned into a Metal?

A: Hydrogen element exists as a gas at room temperature and can be changed into other forms of matter…

Q: The conjugate acid of HSO4 is... O Sulfuric acid O Sulfite O Sulfate Sulfurous acid

A: A conjugate acid base pair differ by only one proton

Q: The number of reactive specie formed when potassium iodate was reduced to potassium iodide O 2 0 1 0…

A: Potassium iodate is reduced to potassium iodide in presence of sulphite in acidic medium. The…

Q: Explain these concepts Ionization enthalpy Electron gain enthalpy

A: Ionization Enthalpy: It is the energy required to remove the most loosely bound electron from an…

Q: Define the term Halogens?

A: The term Halogens has to be defined below.

Q: Draw the Lewis structure of the  following molecules: Sulfuric acid Sulfur trioxide Sulfurous…

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Q: In 1995, Mario Molina, Paul Crutzen, and F. SherwoodRowland shared the Nobel Prize in chemistry for…

A: Redox reaction- the reaction in which oxidation and reduction takes place simultaneously called as…

Q: You are told by your instructor to go to the stock room and find a bottle of the chemical K3Cl. Does…

A: K is potassium, element of group 1 of periodic table with 1 valence electron And Cl is chlorine,…

Q: Based on the nature of reactants and products, determine which of the following potential energy…

A: To determine the nature of the reaction i.e Exothermic or endothermic based on the potential diagram…

Q: Predict the products of the reaction below. That is, complete the right-hand side of the chemical…

A: The question is based on the concept of chemical reactions. we need to complete the reaction…

Q: Predict the products of the reaction below. That is, complete the right-hand side of the chemical…

A: When an acid react with an base , salt and water are formed this type of reaction is called…

Q: What is the most reactive metal to least reactive metal out of: Zinc Tim  iron  magnesium…

A: Metals are good conductor of heat and electricity for example: aluminium, copper whereas non metal…

Q: Which of these elements is most reactive? Li K Na

A: alkali metals are most reactive among other elements of the periodic table,  Because they easily…

Q: What is the molecular weight of Ca3(PO4)2? amu

A: Determine molecular weight of the given compound---

Q: Predict the products of the reaction below. That is, complete the right-hand side of the chemical…

A: The objective of the question is to predict the products of the given chemical reaction and ensure…

Q: What hazards are associated with lead metal? Decrease size of red blood cells. Decrease number of…

A: Lead, a versatile metal, has been utilized throughout history for various applications, ranging from…

Q: HS M

A: To name the given compound, the numbering of the carbon chain of the compound is quite necessary.…

Q: KCIO, + C,„H0,, → KCI +CO, + H,0 3 11

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…

Q: CI Cl P Cl

A: Chemical formula of trichlorophosphene  = PCl3

Q: Listen Balance the equation CgH187) + O₂(g) → CO₂(g) + H₂O(g) - E

A:

Q: Which of the following are paired correctly? Chlorine Cl2 Sulfur S4 Phosphorus Nitrogen N

A: We know that, Chemical symbol of , Nitrogen is N

Q: Which of the following molecules has an unpaired electron (free radical)? nitrogen dioxide O nitric…

A: 1st option is correct that is nitrogen dioxide

Q: Write the chemical formula for this molecule: key carbon hydrogen nitrogen sulfur oxygen chlorine…

A: Given green  - chlorine black - carbon white - hydrogen

Q: Write the chemical formula for each of the following compounds:  Hydrofluoric acid Nickel (I)…

A: Since you asked multiple questions so as per Q&A guidelines of portal I solved first three parts…

Q: Zinc iodide will have the same appearance and properties as which of the following?   zinc sulfide…

A: Zinc sulfide is coreect answer  It is white hexagonal crystals which is a form of solid. Zinc…

Q: The compound iron oxide can exist with either iron(II) ions or iron(III) ions. Conduct Internet…

A:

Q: Reset 000 Period 1 Period 2 Period 3 Period4 Period 5 Period e Period? the

A: The periodic table has: -Groups -Periods Groups are the vertical columns. Periods are the horizontal…

Q: The alkaline earth metal in the third period. O Na Са O Mg Si O AI

A: Given metal :- 1) Na  2) Ca  3) Mg   4) Si  5) Al

Q: Predict the products of the reaction below. That is, complete the right-hand side of the chemical…

A: Given -> HI + NaOH ---->  -> When acid reacts with water it form salt and water as products…

Q: Predict the products from the following chemical reactions. Ammonium Phosphate  +  Magnesium Sulfate

A: When ammonium phosphate reacts with magnesium sulfate gives a double displacement (metathesis)…

Q: Which equation correctly represents the first ionisation of magnesium? O Mg(g)→Mg¯ (g) + e O Mgt (g)…

A: First ionisation means one electron remove from outershell of magnesium atom in a gaseous state.…

Q: 5. When copper sulfate is dissolved in water, it forms a clear blue solution. What are the formulas…

A: Copper sulphate is CuSO4.

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.