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Vedmedyk [2.9K]
3 years ago
11

Ionization energy is a measure of the ability of atoms to attract electrons within a bond. True False

Chemistry
1 answer:
Xelga [282]3 years ago
5 0

Answer:

The correct option is False

Explanation:

Ionization energy is the <em>minimum amount of energy required to remove a valence electron from one mole of an atom in it's gaseous state</em>. Ionization energy requires the removal of an electron from a gaseous atom. The definition in the question is that of electronegativity.

Electronegativity is the <u>ability of an atom to attract electrons towards itself in a chemical bond.</u>

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A sample of juice has a pH of 4.2. Whsat is the concentration in mol/dm3 of OH in the juice?<br>​
Annette [7]

Answer:

6 * 10^-4M

Explanation:

use this equation

[ H + ]  =  10  −  pH

6 0
3 years ago
State the phenomenon exhibited by the two atoms<br>​
Volgvan

Answer:

<u><em>METALS</em></u>

Lose their valence electrons easily/ ionic by electron loss.

<u><em>NOMETAL</em></u>

Gain or share valence electrons easily/ ionic by electron grain.

6 0
2 years ago
Suppose that you add 28.8 g of an unknown molecular compound to 0.250 kg of benzene, which has a K f Kf of 5.12 oC/m. With the a
Brrunno [24]

Answer:

THE MOLAR MASS OF THE UNKNOWN COMPOUND IS 242.02 g/mol.

Explanation:

First:

Calculate the change in freezing point:

          Freezing point of pure benzene = 5.5°C

Change in temperature = 5.5 - 3.06 = 2.44 °C

Second:

Using the formula:

Δt = i Kf m

Let's assume i = 1

Kf = 5.12 °C/m

M = x / 0.250 kg of benzene

Then we can calculate x which is the molarity

Re-arranging the formula, we have:

m = Δt / i Kf

x / 0.250 = 2.44 / 1 * 5.12

x = 2.44 * 0.250 / 5.12

x = 0.61 / 5.12

x = 0.119 M

Since it is well known that molarity is the mass of a substance divided by its molar mass. We can then calculate the molar mass.

Molar mass = Mass / molarity

Molar mass = 28.8 g / 0.119 M

Molar mass =242.02 g/mol

Hence, the molar mass of the unknown molecular compound is 242.02 g/mol.

4 0
3 years ago
Which sample of argon contains a total of 3.01 x 10^23 molecules at STP?
soldi70 [24.7K]

Answer:option d

Explanation:

7 0
3 years ago
Which set of measurements correctly identifies the speed of an object?
In-s [12.5K]

Answer:

A. Distance = 18 m

    time = 2 hr

    speed = 9 m/hr

Explanation:

Speed is the same thing as velocity.

Velocity = distance/time

18m/2hr = 9m/hr

For choice B, the numbers are right, but the units are mixed (minutes were changed to hours)

4 0
3 years ago
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