What does an atomic emission spectrum look like if the electrons energy levels in an atom were not quantizied

Use the periodic table to match each of the following element symbols to its name, atomic mass, or atomic number. Match Term Def

Nataly [62]

The Match of element to its name, atomic mass is as below

element symbol atomic mass or atomic number

Antimony Sb 51

sulfur S 32

Silicon Si 14

Explanation

From periodic table Antimony is a chemical element with symbol Sb and atomic number 51.

Sulfur on the other hand is a chemical element with symbol S and has a atomic mass of 32

silicon is an element with symbol Si and atomic number 14

5 0

4 years ago

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Thermal energy always moves from a greater energy level to a lesser energy level

Nookie1986 [14]

Answer:

$\fbox{Law -Based \: on \: laws \: of \: thermodynamic}$

Explanation:

At constant pressure Thermal energy always moves from a greater energy level to a lesser energy level, laws of thermodynamics prove that.

Nature always likes to attain equilibrium either it's movement of heat energy or flow of water from higher region to lower region. The first and second law of thermodynamics are profe of that, the first law says that the total energy of universe is Constant. Energy can not be destroyed it always changes from one form to another, by work and heat. The second law explains why thermal energy moves from a greater energy level to a lesser energy level, it deals with the change in entropy of a system and surrounding and states heat flows from hot environment to cold environment.

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6 0

3 years ago

Why did workers form labor unions?

USPshnik [31]

Answer:

Labor unions were created in order to help the workers with work-related difficulties such as low pay, unsafe or unsanitary working conditions, long hours, and other situations. ... Sometimes the unions organized strikes in order to try to change the conditions of the workers.

Explanation:

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3 years ago

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Suppose two 200.0-L tanks are to be filled separately with the gases helium and hydrogen. What mass of each gas is needed to pro

Aneli [31]

Answer:

Mass of helium = 4426.9524 g

Mass of hydrogen gas = 2213.4762 g

Explanation:

Pressure = 135 atm

Temperature = 24 °C

Volume = 200 L

Number of moles = ?

The conversion of T( °C) to T(K) is shown below:

T(K) = T( °C) + 273.15

So,

T₁ = (24 + 273.15) K = 297.15 K

Using ideal gas equation as:

PV=nRT

where,

P is the pressure

V is the volume

n is the number of moles

T is the temperature

R is Gas constant having value = 0.0821 L.atm/K.mol

Applying the equation as:

135 atm × 200 L = n × 0.0821 L.atm/K.mol × 297.15 K

⇒n = 1106.7381 moles

For helium gas:

Molar mass = 4 g/mol

The formula for the calculation of moles is shown below:

$moles = \frac{Mass\ taken}{Molar\ mass}$

Thus,

$1106.7381= \frac{Mass}{4}$

$Mass= 4426.9524\ g$

For hydrogen gas:

Molar mass = 2 g/mol

The formula for the calculation of moles is shown below:

$moles = \frac{Mass\ taken}{Molar\ mass}$

Thus,

$1106.7381= \frac{Mass}{2}$

$Mass= 2213.4762\ g$

4 0

4 years ago

Which of the following compounds would you expect to be the most reactive?

9966 [12]

The compound that would be most reactive is Ethyne (answer A)

explanation

Ethyne is the most unsaturated among the four compounds ( it has a triple bond between the two carbon atoms) .

The triple bond in ethyne is made up of 1 sigma bond and 2π bond.

The 2π bond are weaker and can easily break which make Ethyne more reactive than Ethene, methane and Ethane.

4 0

3 years ago