Water, H2O, has a higher boiling point than methane, CH4. TRUE FALSE

The ____________ is inversely proportional to the wavelength and reported in reciprocal centimeters (cm−1). A technique used for

san4es73 [151]

Answer:Please see below in the explanation column for answers

Explanation:

-The WAVENUMBER____________ is inversely proportional to the wavelength and reported in reciprocal centimeters (cm−1).

- A technique used for measuring the molecular weight and determining the molecular formula of an organic molecule is __MASS SPECTOMETRY__________ .

-A compound that contains an odd number of _____N_______ atoms gives a molecular ion an odd mass.

-When the molecular ion consists of two peaks (M and M+2) in a 1:1 ratio, a ___Br, Bromine_________ atom is present in the molecule.

-For a bond to absorb in the IR, there must be a change in the dipole moment during the __VIBRATION_______ .

-Organic chemists use ____iNFRA RED SPECTROSCOPY_______ to identify the functional groups in a compound.

-When the molecular ion consists of two peaks (M and M+2) in a 3:1 ratio, a ______Cl , chlorine______ atom is present in the molecule.

- The higher the percent s-character, the strong the bond, and the _______HIGHER_____ the wavenumber of an IR absorption.

-Hydrocarbons and compounds that only contain C, H, and O atoms always have a molecular ion with an __ EVEN__________ mass.

3 0

3 years ago

Paragraph 2 discusses two different types of thermochemical reactions. In one type of

astraxan [27]

Answer: The reaction is endothermic.

Explanation:

Endothermic reaction : It is a type of chemical reaction where the energy is absorbed from the surrounding. In the endothermic reaction, the reactant have less energy than the energy of products

In endothermic reaction, enthalpy terms is located on the reactant side.

Example: $A+B+energy\rightarrow C+D$

Exothermic reaction : It is a type of chemical reaction where the energy is released into the surrounding. In the exothermic reaction, the energy of reactants are more than the energy of products

In exothermic reaction, enthalpy terms is located on the product side.

Example: $A+B\rightarrow C+D+energy$

8 0

3 years ago

Los catalizadores sirven para detener una reacción química ?

Contact [7]

Answer:

si

Explanation:

Los catalizadores son sustancias que aceleran una reacción química, proporcionando una ruta alternativa para romper y formar nuevos enlaces entre átomos. Su importancia reside en el hecho de que este nuevo camino requiere menos energía que el original, lo que facilita el proceso.

5 0

3 years ago

Complete the chart. (Remember to enter a "0" if necessary.) Atomic Number: 10 1s: 2s: 2p: 3s: 3p: 4s: 3d: 4p: 5s:

ExtremeBDS [4]

First, we determine how many electrons can each subshell hold:
s can hold 2 electrons
p can hold 6 electrons
d can hold 10 electrons
f can hold 14 electrons

Second, we start distributing the 10 electrons on the orbitals of subshells based on the arrangement shown in the question :
1s will hold 2 electrons
2s will hold 2 electrons
2p will hold 6 electrons
All other orbitals will will hold zero electrons as the 10 were distributed among the first 2

Answer: 1s: 2
2s: 2
2p: 6
 3s: 0
3p: 0
4s: 0
3d: 0
4p: 0
5s: 0

5 0

3 years ago

Which reactions are oxidation-reduction reactions? Check all that apply

tia_tia [17]

2 Na + Cl₂ → 2 NaCl

Cu + 2 AgNO₃ → Cu(NO₃)₂ + 2 Ag

CH₄ + 2 O₂ → CO₂ + 2 H₂O

are oxidation-reduction reactions

Explanation:

In the oxidation-reduction reaction there is a component which accept electrons and it is reduced and another component which donates electrons and it is oxidized.

Now in the case of the reaction of copper (Cu) with silver nitrate (AgNO₃):

Cu + 2 AgNO₃ → Cu(NO₃)₂ + 2 Ag

Cu⁰ with a oxidation number 0 donates 2 electrons⁻ and is transformed in Cu⁺² with the oxidation number 2+.

Ag⁺ with a oxidation number 1+ accepts 1 electron⁻ and is transformed in Ag with the oxidation number 0.

In the case of CH₄ + 2 O₂ → CO₂ + 2 H₂O reaction we have:

C⁴⁻ with a oxidation number +4 donates 8 electrons⁻ and is transformed in C⁴⁺ with the oxidation number 4+.

O⁰ with a oxidation number 0 accepts 2 electrons⁻ and is transformed in O²⁻ with the oxidation number 2-.

And in the case of 2 Na + Cl₂ → 2 NaCl reaction we have:

Na⁰ with a oxidation number 0 donates 1 electron⁻ and is transformed in Na⁺ with the oxidation number 1+.

Cl⁰ with a oxidation number 0 accepts 1 electron⁻ and is transformed in Clwith the oxidation number 1-.

Learn more about:

oxidation-reduction reactions

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4 0

3 years ago