es 3 80 2 3.1H+1H → On+ +ỈH Oon 3 Оп 4 4Be 4 O 2 He O iH 1Η

Q: Consider a mixture of 10 billion O2 molecules and 10 billion H2 molecules. In what way is this…

A: The 1st mixture contains 10 billion or 109 O2 molecules and H2 molecules. The 2nd mixture has 109…

Q: Carbon dioxide gas reacts with solid calcium oxide to produce solid calcium carbonate (CaCO3). Write…

A: Calcium oxide will combine with carbon dioxide (for instance, in the air) at room temperature (about…

Q: Is Cl2 a atom, molecule or a compound

A:

Q: What is the mass percentage of each element in the compound Al2 O3? Enter the percent mass of…

A: Al - 53%O - 47%

Q: What are the molecular and empirical chemical formulas of a compound made up of these molecules? :0:…

A:

Q: You have a sample of neon (Xe) that contains 1 mole of atoms. If the diameter of a xenon atom is 216…

A: We have given 1 mole of xenon(Xe) gas having each atom a diameter of 216 pm. And we have asked to…

Q: Classify each chemical compound: compound AIP H₂SO3 N₂0 type of compound O ionic O ionic O ionic O…

A:

Q: Part A (CH3)2NH Express your answer as a chemical formula.   Part B  PO43− Express your answer as a…

A:

Q: The name of ZnSO4.6H2O is

A: The name of ZnSO4 . 6H2O is : The name of compound ZnSO4 . 6H2O is Zinc sulfate hexahydrate.

Q: 4. (a) Below, ionic formulas are paired with names of ions. Which name is incorrectly matched with…

A: We will use the common namings of the ions that are usually used in inorganic chemistry to find the…

Q: Fill in the blank

A: In the given reaction the reactants are acid anhydride and water. An acid anhydride is formed by the…

Q: Which of the following elements are metals? C Ca Br Co Ni Ar Li Al O ?

A: Metal are electropositive in nature  Metals are have less electronegativity  In periods from left to…

Q: OH OH .CI H. ÓH 一て MgBr OH J-チーア OH

A:

Q: A compound consists of elements combined in a fixed ratio. True or False

A: An element is a pure chemical substance made of same type of atoms.  The compounds are made up of…

Q: PC13 atomic metallic solid O ionic solid molecular solid atomic nonmetallic solid

A: The objective of the question is to identify the type of solid that PCl3 (Phosphorus trichloride)…

Q: What is the mass of 4.78 x 1024 nitrogen dioxide (NO₂) molecules?

A:

Q: Composition C-4 is a plastic explosive having a density of 1.05 g/cm3. Calculate the mass of a brick…

A: Given,  Density (D) of C-4 plastic explosive brick = 1.05 g/cm3 Volume (V) of C-4 plastic explosive…

Q: State the number of electrons in Se^2−. Express your answer as an integer.

A: Since we know that  When there is positive charge on an atom it means that it has lost the electrons…

Q: The Law of Definite Composition assures that when oxygen and hydrogen react with one another they…

A:

Q: Question 4 Write the name and formula of the compound made of magnesium and fluorine. Cont Sizer

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: юю 0 < NaOH B НО H D TSOH, H₂O H₂, Raney nickel

A: Carbonyl compounds (aldehyde and ketone) react with an alcohol to form hemiacetal in the presence of…

Q: An atom of rhodium (Rh) has a diameter of about  2.7×10−8cm2.7×10−8cm   If the atom is assumed to…

A: The diameter of the rhodium atom is = 2.7×10-8 cm The volume of rhodium atom in m3 is =?

Q: Mass of silver chloride sample containing 2.05 × 10^20 silver ions

A: Number of ions of silver in silver chloride(AgCl) = 2.05 x 1020 ions 1 mole of silver ion contains…

Q: How many grams do 3.47 x 1023  formula units of Sr(ClO4)2 weigh?

A: The question is based on mole concept. We have been given formula units of solute. we have to…

Q: 6.90 x 1024 formula units of sodium nitrite, NaNO₂ Express your answer with the appropriate units.…

A: Multiple  questions

Q: Write the sum formula of a compound that is the active ingredient of a drug called Tenormin.

A:

Q: 4.39 x 10^27 P4 O10 molecules = Atoms

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Q: H 1.008 3 Li 6.94 11 4 Be 9.012 12 Na Mg 22.990 24.305 19 20 21 22 Ca Sc Ti V K 39.098 40.078 44.956…

A:

Q: N,Si, Sr(NO3)2 CosO3 Co(C,H,O2)3 Mn,N, Mg(OH),

A: While naming a molecular compounds , we write the name of the first element followed by name of the…

Q: Write the chemical formula for this molecule: CI — Se — CІ

A: In this question we have to tell the chemical formula of the given molecule.

Q: A pharmaceutical company is preparing a supplement that provides several useful ions by the human…

A: A question based on general chemistry that is to be accomplished.

Q: 2b. A student formulates the following hypothesis: "If phosphorus were to form a positive ion, P**,…

A: The atomic radius of an element is provided as the distance between the center of the nucleus and…

Q: How many rbonds are there in one molecule of acrylonitrile (shown below)? H C C-C N: 3. 1 O 2

A: In this question, we want to determine the number of π-bonds in the given Compound.  You can see…

Q: Suppose there are two known compounds containing the generic elements X and Y. You have a 1.00 g…

A: In order to find the Chemical formula of the compound we use the concept of empirical formula…

Q: ATOMS, IONS AND MOLECULES Naming ionic compounds with common polyatomic ions Fill in the name and…

A:

Q: A certain organic compound has the formula C8H12O2. A sample of this compound weighs 1.05 grams.…

A: To determine number of atoms of hydrogen in sample We need to calculate moles of sample present .…

Q: 2. + H + Fecla → ar +. H + element oxidized

A: In the redox reaction,  Oxidation and reduction takes place simultaneously.  In Oxidation loss of…

Q: mass Al = 27.0g A1 find the mass of AI mole AI जनद y=.073750. f

A: Given, y ( 27.0 g Al / mole Al )  y = 0.02375        Required,                          Mass of Al…

Q: Which of the following statements is/are true ? (1) The formula of copper(II) hydroxide is Cu(OH)2…

A: We have to predict the correct statement.

Q: i) Me 'CI iii) Me Me

A: Given : acid chloride as reactant and ester as product.  To find : Reagents used for the synthesis…

Q: What is the total number of oxygen atoms on the left-hand side of this chemical equation? 2 Ca₂…

A:

Q: Express your answer as a chemical symbol or an ion

A: Number of protons= 7 Number of neutron = 8 So mass number = 7+8=15. Atomic number = 7  So ,the…

Q: Name the chemicals

A: Cation and anion makes a ionic compound. When writing the chemical name start with cationic part…

Q: Which is a pure element? * Nacl

A: The pure elements are composed of a single type of elements and thus they are classified as pure.…

Q: Which of the following represent molecules that are compounds? A B с OD ос OB OA 88 8 D

A: A molecule is a group of two or more atoms held together by chemical bonds. A compound is a…

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.