What is the maximum number of electrons that can be contained in each of the following ? 

Q: What is the formula for the ionic compound formed by gallium ions and carbonate ions?

A: Ionic compounds are neutral compounds composed of positive ion cations and negative ions known as…

Q: What are the ions involved in these elements?

A: A. HgSO4 = Hg^2+ + SO4^2-  So, in HgSO4 the ions involved are : Hg^2+ and SO4^2-.  B. Ca(OH)2 =…

Q: Pyridoxine contains 11 hydrogen atoms, 8 carbon atoms, 3 oxygen atoms, and 1 nitrogen atom. What is…

A:

Q: Use an example to explain why we say that an atom is thesmallest unit of a substance

A: Atom It is smallest particle unit of matter that retains all chemical properties of the element. It…

Q: During sample introduction in mass spectrometer, the sample is first vaporized then ionized by the…

A: Mass spectrometer: The mass of a molecule is determined by a mass spectrometer by measuring its…

Q: another

A: An atom consist of electron , proton and neutron. Where electron is negatively charged. Proton is…

Q: 20. According to the law of conservation of mass: A. energy will be lost during every endothermic…

A: We have been asked the defination of law of conservation of mass

Q: Describe the formation of solid potassium sulfide (K₂S) fromlarge numbers of potassium and sulfur…

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Q: What does ionization mean

A: Ionization is the process by which atoms or molecules get a positive or negative charge .

Q: What is the total number of atoms in a 30.0 gram sample of neon

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Q: how many electrons are in oxygen

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Q: Write the correct formula to distinguish between calcium sulphide and calcium hydrogen sulphide?…

A: Molecular formula of calcium sulphide is CaS.Molecular mass of CaS = molar mass of Ca + molar mass…

Q: how to find how many electrons given the mass of a sample and the known amount of atoms in the…

A: Given that the mass of the sample and the atoms in an element are known.  From that the number of…

Q: Provide the correct formula for potassium perchlorate

A: The compound given is potassium perchlorate.

Q: What is the formula and name of the ionic compound containing sodium and sulfur?

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Q: how many electrons are present in 2g of oxygen?

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Q: how many electrons in bromine

A: We know that Bromine is a chemical element with atomic number 35. The symbol used to denote bromine…

Q: What is the formula for ammonium fluoride ?

A: Find the Chemical formula below:

Q: Is the formula we write for an ionic compound the molecular formula or the empirical formula? Why? O…

A: Empirical formula represents only the simplest ratio of elements present in the compound and not the…

Q: . For each of the following samples of ionic substances, calculate the number of moles and mass the…

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Q: Magnesium ribbon is converted to form an oxide of magnesium when it is burned as evidenced by a…

A:

Q: Systematically name the following compounds.

A: According to IUPAC nomenclature, first we have to select the longest carbon chain as parent…

Q: Determine the chemical formula for the ionic compound that forms between cesium and chlorine.…

A: A chemical formula of an ionic compound can be formed by criss-crossing the valency of their ions…

Q: formula for strontium acetate

A: Strontium ion has +2 charge while acetate ion has -1 charge. According to crisscross method, they…

Q: a certain compound is made up of 2 chlorine atoms, one carbon atom, and one oxygen atom. What is the…

A: A chemical formula is defined as the composition of elements present in the compound in a fixed…

Q: What is the electrical charge of water?

A: The compound given is water.

Q: Name the compounds.

A: Here we are required to name the compound using IUPAC nomenclature.

Q: Atoms differ from ions in number of

A: Atoms are neutral; they contain the same number of protons as electrons. an ion is an electrically…

Q: Which one of the formulas for ionic compounds below is incorrect

A: Ionic compound is defined as a compound which is composed of ions, charged particles formed by a…

Q: What is the chemical formula of hydrogen

A: To find: Chemical formula of hydrogen

Q: What atoms tend to be reactive?

A: Elements with one or two electrons short or one or two electron extra in their outemost shell are…

Q: How many electrons in a sodium ion? (How many electrons in the ion that sodium makes?)

A: One can give number of an electrons from atomic number and electronic configuration of Na and Na+.

Q: Explain and give an example on repulsion between the protons; repulsion between the electrons;and…

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Q: What is the chemical formula for strontium chloride ?

A:

Q: Predict the charges of the ions in an ionic compound containing the elements potassium and bromine.…

A: In Ionic compound, Potassium forms the ion K+ Bromine forms the ion Br-

Q: Calculate the formula mass for each of the following compounds.

A: In order to calculate formula mass, just multiply the subscript of each element present in the…

Q: Calculate the formula mass of each of the following: (unit = amu)

A: We will answer the first question since we don't answer all questions together. Please resubmit the…

Q: Which of the following generally occurs in nature as an atomic element and not a molecular element?…

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Q: Aetivity 1- Cemplete the table Aetivity 1- Fill in the Table (see reference of elements) Symbol…

A: Atomic number is equal to number of protons and atomic mass is equal to sum of number of  protons…

Q: Why did we classify the compounds qs ionic or molecular?

A:

Q: Calculate the number of atoms in sample. 97.552 g Sn

A: We know that the 1 mole of a substance consists of 6.023*1023 number of atoms. (Mass of one mole of…

Q: What are the most common charges for magnesium and oxygen?  What would you expect the ratio between…

A: When electrons added to an atom it gets negative charge and when electrons are removed from an atom…

Q: What are cations and anions

A: In Chemistry ions forms from atoms and electrons that have either gained or lost their weight by the…

Q: Classify each of the ions as monoatomic or polyatomic.

A: Monoatomic ions are defined as those ions which has only one ion. Polyatomic ions are defined as…

Q: How many moles of atoms are contained in 4.5 × 10 power 22 atoms of copper

A: Given information:Number of copper atoms = 4.5×1022

Q: How many electrons Aluminum atom must lose/gain to become stable? What charge would it obtain?

A: Aluminum is an element of 13 group in periodic table that has atomic mass of 27 g/mol and is used as…

Q: What is the formula for twice as many hydrogen atoms as sulfur atoms

A: The molecular formula which contain twice as many hydrogen atoms as sulphur atoms in a molecule is…

Q: What are the chemical formula? Not structure.

A:

Q: Water is made up of 2 elements, hydrogen and oxygen. What possible elements could substitute for…

A: Water is a chemical compound with chemical formula H2O.

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.