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Chemistry

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Karley Harber

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โˆ™ 2021-10-05 18:34:33
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Cards in this guide (21)
What is the difference between an ionic and a molecular compound

Ionic compounds are between metals and non-metals. Molecular (covalent) compounds are between only non-metals. (Metallic compounds are between metals and other metals.)

An ionic compound is a pure substance that is formed from a metal and a nonmetal. It has a fairly high melting point and is a conductor of electricity when in a molten or aqueous state.

A molecular compound, on the other hand, is a pure substance that is formed from nonmetals. It has a fairly low melting point, and cannot conduct electricity regardless of state.

Another important difference between the two is that an ionic compound is a crystalline solid at standard temperature and pressure (STP), whereas a molecular compound can be in a solid, gas or liquid state at STP.

Molecular compound is derived from combinations of different molecules while ionic compound is derived from inducing electrical current into molecules.

if the compound contains a metal bonded to a nonmetal, it is most likely an ionic compound. It the compound contains two nonmetals, it is a molecular compound.

What is the difference between covalent bonds and ionic bonds

An iconic bond is formed when one or more electrons are transferred from one atom to another. And a covalent bond forms when electrons are shared between atoms

Describe formation of hydrogen bonds

hydrogen bonding only occurs between a very electronegative atom and a hydrogen covalently bonded to an electronegative atom.

What is the shape of a molecule with a triple bond

Pyramidal like NF 3

What are elements and compounds in states of matter

Chemical elements are solids, liquids or gases. Compounds are also solids, liquids or gases.

Where are the electrons most probably located in a molecular bonding orbital

In circular orbits around each nucleus.

What information is needed to calculate the percent composition of a compound

The formula of the compound and the atomic mass of its elements.

What is the formula for phosphorus pentafluoride

P5f

The correct electron dot formula for hydrogen chloride is

..

h:c:

..

Which expression represents the percent by mass of nitrogen in NH4NO3

28 g N/80 g NH4NO3 *100

The ratio of carbon atoms to hydrogen atoms to oxygen atoms in a molecule of dicyclohexyl maleate is 4 to 6 to 1 What is its molecular formula if its molar mass is 280 g

C16h24o4

How are formulas for binary molecular compounds written

Binary molecular compounds are formed from the reaction between two nonmetals. The formulas for binary molecular compounds are written in a similar manner with ionic compounds.

What is the volume in liters of 0.500 mol of c3h8 gas at stp

Its about 11.2 L :)

If the density of a noble gas is 1.783 gL at STP that gas is

Ar

(argon)

What is the formula of the ionic compound formed by N i and oxygen

If the question is about Ni (without space), nickel metal, it can be NiO,

but the reaction to form it is not very likely, Ni is a rather precious metal.

What is the number of moles in 9.63 L of H2S gas at STP

.430 mol

What is a binary molecular compound PCl5 MgS Agl or BeHCO3

PCl5, MgS and Agl are binary compounds.

Which class of elements is most effective at conducting electricity and heat

Metals. :)

Who arranged the elements on the periodic table according to their physical and chemical properties

Dmitri Mendeleev (in his periodic table, who arranged according to increasing atomic mass).

Niels Bohr in the modern periodic table, where the elements are arranged in increasing atomic number.

What is the number of moles for 27.50 grams of CaCO3

Approximally 0.275 moles.

The molar mass of Ca C O3 is ~ 40+12+3*16 = 100g/mol

27.50g = x mol *100g/mol

27.50g/(100g/mol) = x mol

0.275 g/(g/mol) = x mol

0.275 mol = x mol

What net ionic equation describes the reaction when these solutions are mixed

The net ionic equation that describes the reaction when these solutions are mixed is the net summation. This is the net ionic equation for the chemical reaction.

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