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3 years ago

What is Ionization Energy?

Chemistry

2 answers:

scoundrel [369]3 years ago

7 0

Answer:

This is the energy required to remove a valence electron from an atom of the element to form an ion.Generally,there is a tendency for ionization energies to increase across a period and decrease down a group....

NARA [144]3 years ago

4 0

Answer:

Ionization energy is a measure of the difficulty involved in removing an electron from an atom or ion or the tendency of an atom or ion to surrender an electron.

Explanation:

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If all of the above images represents the same material, which has the highest temperature?

aleksklad [387]

Answer:

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Explanation:

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4 years ago

Buildings are more dense than the surrounding air. This means that they have more _____ per volume than the air and will stay on

Anit [1.1K]

The correct answer would be that they have more MASS per volume than air.

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3 years ago

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A student prepared a stock solution by dissolving 20.0 g of NaOH in enough water to make 150. mL of solution. She then took 15.0

pav-90 [236]

Answer:

$0.769\ \text{M}$

Explanation:

Mass of stock solution = 20 g

Molar mass of NaOH = 40 g/mol

Volume of stock solution = 0.150 mL

$M_2$ = Concentration of NaOH for the final solution

$V_1$ = Amount of stock solution taken = 15 mL

$V_2$ = Total volume of solution = 65 mL

Molarity is given by

$M_1=\dfrac{\text{Mass}}{\text{Molar mass}\times \text{Volume}}\\\Rightarrow M_1=\dfrac{20}{40\times 0.15}\\\Rightarrow M_1=\dfrac{10}{3}$

We have the relation

$M_1V_1=M_2V_2\\\Rightarrow M_2=\dfrac{M_1V_1}{V_2}\\\Rightarrow M_2=\dfrac{\dfrac{10}{3}\times 15}{65}\\\Rightarrow M_2=0.769\ \text{M}$

The concentration of NaOH for the final solution is $0.769\ \text{M}$ .

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3 years ago

Marshall determines that a gas has a gauge pressure of 276 kpa what's the absolute pressure of the gas

omeli [17]

A gauge records the pressure over atmospheric pressure (0kpa on the gauge is actually the atmospheric pressure and a reading of 276kpa is 276kpa over atmospheric pressure). That means that means that to find absolute pressure you just add atmospheric pressure (around 1atm (101kpa)) to 286kpa to get 387kpa. I hope this helps.

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4 years ago

Which issue associated with nuclear power is the biggest source of debate?

Sindrei [870]

Ill tell you what the big issue is nuclear power is this yeah

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3 years ago

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