A new compound has the empirical formula GaCl2. Thissurprises some chemists who, based on the position of gallium in the periodic table, expect a chloride of gallium to have the formula GaCl3 or possibly GaCl. They suggest that the “GaCl2” is really Ga[GaCl4], in which the bracketed group behaves as a unit with a -1 charge. Suggest experiments to test this hypothesis

Q: There are three isotopes of Silicon. They have mass number of si^28 (27.976927) relative abundance…

A: Given-> Si^28 (27.976927) = 92.2297 % Si^29(28.976495) = 4.6832 % Si^30(29.973770) = 3.0872 %

Q: You analyzed 2.475 g of a mixture of NaCl, SiO2, and CaCO3. You isolate 0.825 g NaCl, 0.825 g of…

A: Given data : Mass of the mixture = 2.475 gms % of NaCl = 35% % of CaCO3 = 45% % of SiO2 = 20% So,…

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: Given: Determine average atomic mass and complete the measurement.The average atomic mass, also…

Q: 1. Using the various group classifications from the periodic table, assign all appropriate labels to…

A: In the periodic table elements are arranged on the basis of their atomic number. When the elements…

Q: (b) A certain element has two naturally occurring isotopes. The mass of one of the isotopes is…

A: Given, Mass of One Isotope = 106.905 amu Mass of second isotope = 108.883 amu  % isotope of one…

Q: Look up the following information for the element iridium: (i) number of protons, neutrons, and…

A: Since you have posted a question with multiple sub-parts,we will solve first three sub-parts for…

Q: A hypothetical element, E, has two stable isotopes. One isotope has a natural abundance of 66.909%…

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Q: A 1.50-g sample of Na2SxO6 contains 6.68 x1021 sodium ions. Determine the value of x.

A: Given details, The mass of Na2SxO6 = 1.50 g Then, Na2SxO6 has two sodium ions.  Na2SxO6 having 6.68…

Q: The monatomic ions of Groups 1A(1) and 7A(17) are all singly charged. In what major way do they…

A: To find: The monatomic ions of Groups 1A(1) and 7A(17) are all singly charged. In what major way do…

Q: A modified carboxyl group has several uses in cosmetics and perfumes industries due to its property…

A: Solution (i). Chemical class of modified carboxyl group is ester.  Esters are prepared by an…

Q: Q19. Select ------- The element that has the smallest density, Na, Li, Rb, Sr The strongest base…

A: Note: As per Bartleby policy, we can only answer one question at a time. So please post remaining…

Q: How has the understanding of the structure of the atom changed over time? Briefly describe the…

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Q: atoms

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Q: What are the basic units-single atoms, molecules, or for- mula units-that compose each substance?…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Iron exists in nature as a mixture of predominantly three isotopes: ⁵⁴₂₆Fe (53.94 amu), ⁵⁶₂₆Fe…

A: We have to calculate the percentage of rarest of three isotopes.

Q: Consider the following organic substances: ethanol, propane,hexane, and propanol. (a) Which of these…

A: The functional group is the groups that are the characteristic moieties of the chemical compound…

Q: Choose one group of representative elements (main group elements) and discuss its chemistry by…

A: The chemically active elements whose outer orbitals are not completely fulfilled is known as…

Q: Write the empirical formula corresponding to each of the following molecular formulas: (a) Al;Bre;…

A: Empirical formula gives simple whole number ratio of atoms of various elements present in one…

Q: Describe the PHYSICAL PROPERTIES of the following Specifically, what type of matter is this? (e.g.…

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Q: is an impossible formula.  If it were real, determine the molar mass of: Fe2S4O5 Remember that you…

A: Given -> Atomic mass of Fe = 55.85 g/mole Atomic mass of S = 32.06 g/mole  Atomic mass of O =…

Q: Write the symbol for each of the following ions. (Enter your answer in the form  A X q± Z .) (a) the…

A: Since you have posted a question with multiple sub- parts, we will solve first three sub- parts for…

Q: Use the following atomic masses (in g/mol): K = 39.1; Mn = 54.94; O = 16; H = 1; P = 30.97; C =…

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Q: Describe the contributions of the alchemist to the science of chemistry.; Give at least 10 sentences

A: Alchemy was practiced since the ancient period in different places of the world like China, Greek,…

Q: An ionic compound has the empirical formula H,N,0,, Suggest the formulae of the jons present in this…

A: Complete octet of nitrogen and oxygen and draw the structure.

Q: (a) Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of…

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Q: The element G has an atomic number less than 30. Its highest oxidation state is +6 and its ions are…

A: The atomic number of the element is less than 30. The highest oxidation state is +6 and colored.

Q: (a) Atoms are very small compared to objects on the macroscopic scale. The radius of a vanadium atom…

A: (a)Calculate the radius of vanadium atom in centimeters and meters:

Q: Identify each of the following elements as a metal, nonmetal,or metalloid: (a) gallium, (b)…

A: Metals are those elements which show metallic properties like shiny appearance, ductile and…

Q: Group 15 elements Answer these questions about the group 15 elements. (1) Within this group, bismuth…

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Q: Identify each of the following elements as a metal, non-metal, or metalloid: (a) gallium, (b)…

A: In the periodic family: Metals exhibit electropositive character. Non-metals exhibit electronegative…

Q: Which of these compounds is named correctly? (A) MnO2 = manganese(II) oxide…

A: The name of the simple ionic compounds are given on the basis of the cationic and anionic species…

Q: Give the formulas of the compounds in each set: (a) lead(II)oxide and lead(IV) oxide; (b) lithium…

A: Introduction- Chemical formula is the scientific symbol of the names of the compounds that are…

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

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Q: (d) the ion with 74 electrons, 116 neutrons, and a +3 charge

A: Answer:Mass number of the element is always equal to the sum of number of protons and number of…

Q: Three samples (A, B, and C) of pure substance composed ofsodium, sulfur, and oxygen were isolated…

A: A question based on elemental analysis, which is to be accomplished.

Q: The following paragraph is a description of the fictional element melbournium (Mb).   Mb in its…

A: Answer:Electronegativity differenceBond typeless than 0.4Pure covalentBetween 0.4 and 1.7Polar…

Q: Calculate the exact masses of the ions C5H8O1 and C6H12 1, both of which have a nominal mass of 84.…

A: The organic compounds can be identified by various characterisation techniques. For example, NMR,…

Q: 2. C12H24(I) + O2(g)

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Q: hich of the following statements is/are true? I. Solids are compact but if melted it moves…

A: The correct options are:

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.