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: Magnesium (average atomic mass = 24. 305 amu) consists of three isotopes with masses 23.9850 amu,…

A: Given: average atomic mass = 24. 305 amu three isotopes with masses 23.9850 amu, 24.9858 amu, and…

Q: Elements in the same group of the periodic table often form oxyanions with the same general formula.…

A: The oxyanions in same group have same suffix depending upon their oxidation states.

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: Identify an element that would have similar properties as magnesium (Mg). Explain your choice and…

A: The element that has the similar properties like magnesium is -

Q: Calculate the radius in nanometers of a metallic atom given that it has a BCC structure and a…

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Q: Mg + O2 ------> MgO Na2CO3 -------> Na2O + CO2 C3H8 + O2 -------> CO2 + H20

A: As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost other…

Q: Consider these compounds: A. Baco3 B. Baso4 E. Co(OH)2 D. MGF2 Complete the following statements by…

A: Like dissolves like. Generally, solubility depends on the polarity of the molecule. Polar molecules…

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: Enter the symbol of a sodium ion, Na+Na+, followed by the formula of a sulfate ion, SO42−SO42−.…

A: Answer 2: Introduction: Sodium belongs to group 1 element with atomic number 11 and mass 22.98…

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: Some salts make hydrates when there is moisture around. Some hydrate samples can absorb lights in…

A: Number of Mole-Ratio of given mass of substance to the molar mass of substance is called number of…

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: Write the following equations for Al2(SO4)3(aq) and Pb(NO3)2(aq). Include the states of matter in…

A: In a double displacement reaction, two ionic compounds exchange their constituting ions between each…

Q: Hydrogen fluoride is used in the manufacture of Freons (which destroy ozone in the stratosphere) and…

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Q: Magnesium (average atomic mass = 24.305 amu) consists of three isotopes with masses 23.9850 amu,…

A: This question is answered by using the simple concept of calculation abundance of the isotopes using…

Q: Let's start by finding the location on the periodic table for the atoms for substances that conduct…

A: In general ionic compounds formed between metal and non metal conducts electricity when dissolved in…

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: Find Molecular Formula of hydrated barium hydroxide (Ba(OH)2·xH2O). Given, Mass of empty beaker and…

A: Mass of hydrated complex, (Ba(OH)2·xH2O) = 5.0 g Mass of anhydrous complex, Ba(OH)2 = 2.28 g   The…

Q: Pick an element from the Periodic Table AFTER number 25, Mn, and do not pick a diatomic element.…

A: 1. The symbol of element after Mn is Fe  2. The molar mass of Fe is = 55.845 g/mol

Q: Q21. Compare graphite and diamond

A: Graphite and diamond are allotropic forms of carbon that exist in nature.

Q: Fill in the systematic names of the following chemical compounds. Note: for compounds containing…

A: There are some rules for writing the systematic name of the molecular compounds or covalent…

Q: The study of the structure of a material can be carried out at four different levels. The first is…

A: Materials science is a multidisciplinary field that studies the properties of matter and its…

Q: In the ammonia (NH) molecule of the figure, the three hydrogen (H) atoms form an equilateral…

A: You can find the center of mass of the 3 Hs first, then find the center of mass between that point…

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.