13 What is the mass of carbon which reacts with 223 g of lead oxide? 2PBO + C 2Pb + CO, 6 g 12 g 24 g 48 g D

Q: 9. Complete and balance the following equation (include correct physical state of each product)-…

A:

Q: Calculate the amount of Aluminum (AI) obtained by decomposing 9.8g of Aluminum oxide (Al203) (RAM…

A:

Q: Which of the following properties is NOT a characteristic of the Group 1A(1) elements They are…

A: Step 1: Group IA elements are called as alkali metals and these all have one electron in their…

Q: Co

A: Isotopes : if two same element have same atomic number but atomic masses are different then we can…

Q: Ph 2. (Across) Heaviest element that a star can fuse. (symbol) Ph 4. (Across) In IUPAC naming this…

A: Since you have asked multiple questions that are different, we will solve only one question for you…

Q: what is the physical state of element Co? what is the physical appearance of element Co? what is…

A: Cobalt is a d - block element. It's atomic number is 27 and atomic mass is 58.933 g/mol. It is…

Q: Calculate the weight needed to prepare 0.5 liter of 0.1M potassium chloride (KCI) given that the…

A: Given that, Concentration of KCl solution required =  0.1 M Volume of KCl solution required = 0.5…

Q: Which of the following elements would be expected to be particularly stable? 37 O 17 40 Ca O 20 38 K…

A: A multiple choice question based on octet rule, which is to be accomplished.

Q: what mass of sodium is also produced?

A: Given :- 2Na3N → N2 + 6Na  Mass of N2 produced = 29.7 g  To calculate :-   Mass of sodium (in g)

Q: For question 16 to 18, refer to the following Periodic Table. a h i k e d 16. Which of the following…

A: Periodic table is arrangement of elements on the basis of atomic masses.

Q: (A) n=3,7=2 (B)n=42=3

A: ml is the magnetic quantum number. Magnetic quantum number represents the orbitals.  Possible values…

Q: Write the equation for the reaction associated with the Ka2 of sulfuric acid, H2SO4. Write the…

A: Since  the  reaction  associated  with  Ka2 is basically the  second dissociation of acid reaction…

Q: The oxides of nitrogen are very important components inurban air pollution. Name each of the…

A: Nitrogen is the most abundantly found gas in our Atmosphere with 78.09% by volume.

Q: How many core electrons does nickel contain? O 26 O 18 O 2

A: How many core electron in Nickel ?

Q: Discuss the application of thorium as a source of nuclear fuel

A: Thorium can also be used as alternative source of nuclear fuel due to following applications: There…

Q: 9. Give the net ionic equation for the following: N22SO4(aq) + Ga(NO3)3(aq) - → ee

A: Net ionic equation :-       The net ionic equation is a chemical equation for a reaction that lists…

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: 1. If 23.6 grams of nitrogen are mixed with 17.3 g of hydrogen, how much ammonia may form?

A: Given :-  Mass of Nitrogen, N2 = 23.6 g  Mass of Hydrogen, H2 = 17.3 g  Mass of Ammonia, NH3 = ?…

Q: Complete and balance the reaction. x x, He →, (aq), | 5. H,PO, (aq) + Ba(ОН), (ag) —

A: The complete balanced equation for the reaction is : 2H3PO4 (aq)  +  3Ba(OH)2(aq)  →  Ba3(PO4)2(s)…

Q: How many oxygen (O) atoms are involved in this 2Fe(OH), > Fe,0, + 3H,0 A. 2 В. 3 C. 6 D. 12

A: The above reaction is between  2moles of Ferrric hydroxide    2Fe(OH)3  =  Ferric hydroxideFe2O3=…

Q: 19 - Which of the given elements has similar properties with iodine (I) A) Br B) Te C) Ar D)…

A: Generally, the elements of a given group have similar properties due to similar general electronic…

Q: Fe= 55.15 o=16.08 N= 14.11g give molecules, atoms and ions in .650moles of Fe(NO2)2 please show…

A:

Q: Part B A sample of N2 at STP with a volume of 55.1 mL contains 2.43x10-3 mol. What mass of Oscium,…

A:

Q: The possible product, which results during burning of Mg in air is: O a. NH3 O b. Mgo с. Mg(ОН)2 O…

A: Normally we see that , when we magnesium is burned in the air , it Burns withe white flame . And we…

Q: Of the elements listed below, which one would be a poor conductor of heat and electricity? a) Mg b)…

A: Which element among the following Mg, CS, Se, Sn & Zn   is poor conductor of heat and…

Q: Deuterium (chemical symbol - D) is a heavy isotope of hydrogen, H. Despite having an extra neutron…

A: Given : D2 reacts similar to that of H2.

Q: ÇI CO,Na Structure Y Structure Z

A: This is simple an acid - base reaction

Q: 79) 79.) In each of the following groups,which element is leost reuctive? Group ! a. b.Group 7 C.…

A: The most fundamental classification of the chemical elements is into metals and non-metals. Metals…

Q: Calculate the mass of oxygen that will be prepared through the decomposition of 50 kg of potassium…

A: Correct option is (D) 19.6Kg

Q: (you may use each more than once). You can use compound 48 to prepare 49. ...|| ОН РСС H20 Mg PBR3…

A: Reaction of Br with mg form Grignard reagent

Q: 7.00 L of water vapor at 50.2 °C and 0.121 atm reacts with excess iron, how many grams of iron(III)…

A: Volume of H2O = 7.00 L  Temperature = 50.2°C  Pressure = 0.121 atm

Q: The process of iron combining with oxygen to form rust is considered a chemical change because rust…

A: Rusting It is an oxidation reaction. The iron reacts with water and oxygen to form hydrated…

Q: Q5: The percentage composition of fuel is carbon to hydrogen ratio is 18, H = 5% , O = 2%, S 0.4%, N…

A:

Q: 7. which isotope of phosphorus kept under water red Black white violet

A: Answer :- White  -------------------------------------------------------------------------

Q: MCQ 36: Halogen that can react with noble gases like Xe is A. F B. CI C. Br D. I

A: Noble gases are those element which have complete octet i.e., they have 8 electrons in their valence…

Q: The Group 1A elements A) melt at high temperatures B) are unreactive and are rarely found in…

A: Group 1A element are also called alkali metals. Li, Na, K, Rb, Cs.  Group I elements have 1 valence…

Q: 나 n 4. ar 3.27

A: PH = - log (H+) This question can be  solved by this formula which is given below

Q: QUESTION 9 Which element in period #6 has similar chemical properties to Magnesium? а. Si b. Ra Са…

A: Magnesium is a metal having atomic number 12. The distribution of electron in various shell is…

Q: How many hydrogen atoms are in 1.0 g of H20 (MW = 18)? %3D

A: Given :- amount of H2O = 1.0 g  Molar mass of H2O = 18 g/mol  To calculate :-  Total hydrogen atoms…

Q: 1. Which element belongs to Group 4A? ○ calcium ○ carbon ○ selenium ○ chromium 2. Which of the…

A: 1) The element that belongs to Group 4A has to be identified. The given elements are Calcium,…

Q: All of these following elements or compounds are chemically unreactive, except: Krypton O Carbon…

A: Given we know about the rectivety of the atoms All of these following elements or compounds are…

Q: What is the percentage of metal in the compound Iron (III) Chromate (Fe2(C О А. 24.30% о в. 58.23% О…

A: Calculate percentage as below

Q: 5. Production of electrical energy using Mg and Ca Cae + (s) Mg*e Cat2, (aq) (aq)

A: The relation between free energy and cell potential is shown below: where; n = no. of electrons…

Q: . The 0:"O abundance ratio in some meteorites is greater than that used to calculate the

A:

Q: Oxygen-8 is less stable than Oxygen-9

A: Oxygen-8 and oxygen-9  are different isotopes of oxygen. Oxygen 8 has 8 proton and oxygen 9has 9…

Q: Potasium 17. CH,I 8. KP Iodomethane Phosphide 9. НCN Cyanic Acid 15. | Н,S Hydrogen Sulfide

A: Answer :-   Sr. No  Formula  Name  Lewis structure  8 K3P Potassium Phosphide  9 HCN  Cyanic…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".