Elements/ Compound Name Chemical Formula Number of atoms Total number of atoms Hydrochloric acid HCI Water H20 Benzene Methyl chloride CH,CI Naphthalene

Q: A. MELTING ICE B. BURNING MATCH C. SAND AND SALT MIXING E. WATER FROM F. STEAM D. MILK GOING SOUR…

A:

Q: What is the importance of making molecular models

A: Sub-atomic models are the actual models used to address particles in space. It addresses atoms in an…

Q: Which of the following would contain the highest number of atoms?

A: Number of moles = mass/molar mass.  1 mol contains 6.022 × 1023 atoms

Q: Decide whether each pair of elements in the table below will form an ionic compound. If they will,…

A:

Q: Definition and example of molecular compounds

A: Molecular compounds are to be defined with examples.

Q: Differentiate between Molecules and Molecular Compounds?

A: Differentiate between Molecules and Molecular Compounds

Q: Empirical Formula of benzene (C6H6)- CH ascorbic acid (C6H8O6)- sucrose (C12H22O11)- C12H22O11…

A: the empirical formula-

Q: Which sample contains the greatest number of atoms? 54.7 g V 51.2 g Mn 203 g Bi

A: To find number of atom we have to calculate number of moles first. Moles= given mass/molar mass…

Q: This picture represents * Atoms of an element O Molecules of an element O Molecules of a compound O…

A: Atoms are indivisible particles of matter. Elements that cannot be decomposed. Compound composed of…

Q: which of the following are nonelectrolytes? 1. HC2H3O2 (acetic acid) 2. C12H22O11 (sucrose, table…

A: Electrolytes are substances that dissociate into ions (positive and negative) when dissolved in…

Q: Which of the following statements about compounds and molecules are true?  not all compounds are…

A: When two or more chemical elements combine via chemical bonds, they form a new species called a…

Q: A faraday is      a mole of protons     a charge of one electron     a mole of electrons…

A: One Faraday of electric charge equlas to the charge on a mole of electrons (e-), that is 6.022 x…

Q: A mole refers to the amount of substance which can be an atom, molecule, ion and other particle or…

A: Deck of cards , Bundle of sticks and piece of paper does not relate to concept of mole because it…

Q: Convert the following to mass in grams   4.25 x 1024 atoms N

A:

Q: It is commonly known as fruit sugar. Its percentage composition is 40.0% carbon, 6.71% hydrogen, and…

A: Given Element %  of  carbon(C) = 40.0 % = 40.0 g Element %  of  hydrogen(H) = 6.71 % = 6.71 g…

Q: How many trunks are found in one mole of elephants? Write your answer in scientific notation such…

A:

Q: Which of these is NOT true of chemical changes?

A: Substance can change two ways  1. Physical change  2. Chemical change   we should study major…

Q: Write the formula for the following molecular compounds. A) Sulfur hexabromide B) Oxygen…

A: The molecular compound is formed by the sharing of electrons between the atoms. By the sharing of…

Q: The formula for alum has 1 Al. How many units alum could be made from 7 Al atoms? Answer with a…

A: The molecular formula of alum is K2(SO4)·Al2(SO4)3·24H2O or KAl(SO4)2·12H2O

Q: A sample of methane, CH4, has a mass of 58.25 g. Calculate the number of methane molecules in the…

A: Given mass of CH4 = 58.25 g Molar mass of CH4 = 16.04 g

Q: What are units that comprise a molecular compound?

A: A compound is defined as the chemical substance that is made by the combination of two or more than…

Q: What is a mole? How is the mole concept useful in chemical calculations?

A: Mole Mole is a quantity that represents a collection of 6.022×1023 atoms or molecules. The term…

Q: FORMULATION OF NON-METAL - NON-METAL BINARY COMPOUNDS Complete the following table! Compiler…

A: The chemical formula represents the number of atoms of each element present in the molecule. The…

Q: Which of these are compounds (not elements)? NaCI O CaCl2 Н2 O N2

A: An element is defined as a material which consists of or  is made up of same atoms, whereas a…

Q: he mass composition data for two compounds containing phosphorus and chlorine is shown below. Does…

A: we are given the composition of compound 1 and compound 2           PHOSPHORUS(P) CHLORINE(Cl)…

Q: Stainless steel is composed of iron, manganese, chromium, and nickel. If a 2.00 g sample was…

A:

Q: A large number of atoms of the same kind is

A: Matter is classified into following types  1 Pure  substances        2. Mixture    1. In Pure…

Q: determine the number of each type of atom in NH4Cl

A:

Q: how many moles of fluorine are present?

A: 1 mol = 6.022 × 1023 atoms  Number of moles = mass/molar mass  Mass = number of moles × molar mass…

Q: U-238 is naturally the most abundant form of uranium; however, only U-235 can be used as fuel in a…

A:

Q: An unknown compound has the following chemical formula: C_2F_x where x stands for a whole number.…

A: Mole of fluorine = 2.6 mol  Mole of carbon = 1.29 mol