_1. A giver of 2 electrons. _2. The element in the group I would be

Q: Nbalance Za3L2 + Nf2QU ----> ZaQu + Nf3L Za= +2 QU= polyatomic -2 Nf= +1 metal L= nonmetal -3…

A: To balance the equation, Za3L2 + Nf2QU ----> ZaQu + Nf3L

Q: D what is the mass of aluminunm Oxide Hoti9e almoD produced fom 174a AGn ganose (N) oxide cole a4…

A: Mass of MnO2 = 1.74 g  We need to determine mass of Al2O3 formed.

Q: An acid, HEl, is formed from a hypothetical element, El, and a subsequent aqueous solution is…

A: Hypothetical element El Hydroacid, HEl Reaction; H2O + HEl  = H3O+ + El-   Molar mass of HEl =…

Q: 20. How many atoms does each prefix specify? mono-, di-, tri-, tetra-, penta-, hexa-.

A: An atom is the smallest unit in an element that has all the properties of that element. Molecules…

Q: A student started with a sample of Cu of 8.66 grams . After the sample was burned in air, the…

A: The mass of Cu sample = 8.66 grams The mass of sample of Oxide after burning the Cu  ( Cooper oxide…

Q: a. How many carbon atoms are in the sam b. How many hydrogen atoms are in the s c. How many oxygen…

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Q: Anthracite is a type of coal that is composed of carbon with small amounts of hydrogen, oxygen,…

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Q: Oxygen is a _______ and therefore _______ when it forms an ion   A. nonmetal;       loses…

A: Oxygen is a nonmetal element.

Q: Electrons may transfer from  a) atoms of barium to atoms of chlorine b)atoms of sodium to atoms of…

A: We have to predict the option for which  electron transfer is possible.

Q: Help me with understanding how to calulate mass for A1 and A2

A: Molarity = mole of solute(mol)volume of solution (L)Mass of compound = moles × molar mass1mL =…

Q: Calcium Chloride Element #1 Element #2

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Q: Which of Dalton’s postulates about atoms are inconsistent with later observations? Do these…

A: In 1808 John Dalton has provided the first atomic theory. He has stated that all matter is made up…

Q: D. Empty Volume Determination of Aluminum A sample of aluminum weighs 27.0 g and has a volume of…

A:

Q: Seawater is approximately 4.0% by mass dissolved ions, 85% of which are from NaCl. (a) Find the mass…

A: The concentration of seawater is 4% by mass. This implies that 4g of solute is present in 100 g of…

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

A: According to the unit conversion, 1 mm is equal to 1×109 pm. The diameter of tungsten is 274 pm.…

Q: What is the Process that produces elements in the stars? Give at least 10 sentece

A: Elements are formed by nuclear fusion. Stars create new elements in their cores by squeezing…

Q: A student has a sample of zinc that weighs 22.19 g How many zinc atoms are in this

A: Given :- mass of Zn = 22.19 g  To be calculated :- number of Zn  atoms  molar mass of Zn = 65.38…

Q: Part C Based on your answer in Part B, how many electrons are in this amount of 13C? Express your…

A: The electron is a subatomic particle with the symbol e or, whose electric charge is one elementary…

Q: Mass Isotope from the list, and answer the following questions for each term: What familiarity and…

A: The two given terms are  Mass Isotope Dear student since it is a multiple subparts questions,…

Q: 19. Name or Write the following compounds: a) Dinitrogen hexafluoride = b) Lead (IV) oxide c) NaMno,…

A: a.) From the name it is clear that the compound contain 2 nitrogen(di) and six fluorine(hexa) atoms.…

Q: (a) CACO; is the chemical formula for calcium carboaate. (b) An acid reacting with a carbonate…

A: 21. (a) CaCO3 is the chemical formula for calcium carbonate.

Q: Lead (II) Nitrate Element #1 Element #2 Element #3

A: Chemical formula of lead nitrate is Pb(NO3)2 Atomic mass of Pb = 207g/mol Atomic mass of nitrogen =…

Q: SO, Na + HCI → ? + NaNO2 → ? -N=N-

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Q: In a neutral atom the number of protons equals

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Q: alculate reduced molar mass (in g/mol] for two particles with masses 30.4 g/mol and 57.7 g/mol. Note…

A: Given mass of particle 1(m1) = 30.4 g/ mol Mass of particle 2(m2) = 57.7 g/ mol Reduced mass =?…

Q: Complete the table below

A: Since you have posted multiple parts, the answer for first three parts are given below. Kindly…

Q: The naturally occurring isotopes of sulfur, their atomic masses, and abundances are: S-32 : 31.97207…

A: e. The average atomic mass of isotopes can be calculated using the following expression:…

Q: The radius of a hydrogen atom is 37 pm (1pm 10-12m). How many hydrogen atoms lined up side to side…

A: Given,Radius of hydrogen atom = 37 pmDiameter of hydrogen atom = 2 × radius = 2 × 37 pm = 74 pm…

Q: 10. Use what you have just learned about chemical formulas to identify the following as element…

A: (a) Br2 -  It is an element, because it has only one type of constituent atoms of bromine. Here two…

Q: Classify each statement as an observation, a law, or a theory. If elements are listed in order of…

A: Observation is what is happening physically is observed through measurements. Law is made on the…

Q: a. How many hydrogen atoms are in the picture? Nitrogen? b. Does the formula indicate how many atoms…

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Q: The waters of the oceans contain many elements in trace amounts. Rubidium, for example, is present…

A: Note :  Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: If the lower pie chart was drawn asthe percentage in terms of number ofatoms rather than the…

A: SOLUTION: Step 1:  Avogadro’s number = 6.022 x 1023 entities…

Q: Based on your answer in Part B, how many electrons are in this amount of 1°OC?

A: Given :- mass of 13C = 5.00 g  To be calculated :- number of electrons    Number of moles =…

Q: Zinc chloride Element #1 Element #2

A: Given, Zinc Chloride (ZnCl2)  Molar mass of Zn = 65.38 g/mol  Molar mass of Cl = 35.453 g/mol  Molar…

Q: A metal ion with 2+ charge has 23 electrons and forms a compound with a halogen ion that contains 17…

A: SOLUTION: Step 1: A metal gains positive charge by the loss of electrons. A metal ion with 2+ charge…

Q: of atoms blocks metals or nonmetals? metals Os OP [G]ns? nonmetals Od Of O metalloids O metals Os OP…

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Q: Ca?* and S?- Express your answer as a chemical formula.

A: To form the chemical formula by ions (cation & anion ). We have to make charge balance between…

Q: 117)In each of the fallowina sets of elements,indicate which elements shows the mast active chemical…

A: Reactivity of element is directly proportional to oxidation potential. (a) Al (b) Na (c) B Position…

Q: An aqueous solution of Acetic acid conducts less electricity than the aqueous solution of magnesium…

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Q: Based on your answer in Part B, how many electrons are in this amount of 13C? Express your answer…

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Q: Fill in each blank for the element Chlorine. Metal, semimetal, or nonmetal? Usual ionic charge?…

A: Metals are good conductor of heat and electricity whereas non-metals are poor conductor  of heat and…

Q: QUESTION 31 A substance composed of two or more elements in a fixed, definite proportion is O A. a…

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Q: In the following How many Fe atoms How many O atoms How many S atoms Fez(SO4)a

A: The number of atoms present in Fe2(SO4)3 has to be given.

Q: Calculate the mass %'s for hydrogen and oxygen in the two samples given below. Is the law of…

A: To solve first we calculate the % composition of Hydrogen and Oxygen to given sample A and B

Q: 41) A teenage child in Wisconsin throws a chunk of sodium metal into a lake consisting of freshwater…

A: Given: mass of sodium = atomic number of fluorine = 9 kg = 9000 g density of water = 1.01 g/mL…

Q: Potassium bromide + Iron (III) oxide Potassium oxide + Iron (III) bromide REACTANTS PRODUCTS Element…

A: