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labwork [276]
3 years ago
10

The energy absorbed or released when an electron is added to a gaseous atom is know as

Chemistry
2 answers:
Neko [114]3 years ago
8 0
Exothermic reaction I think it is
PIT_PIT [208]3 years ago
6 0
Exothermic reaction hope I helpef
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cupoosta [38]

Answer:

have you interested sex then reply me I am from India

6 0
2 years ago
How many atoms are in KCI
vovikov84 [41]
<h3>Answer:</h3>

2 atoms

<h3>Explanation:</h3>
  • Compounds are substances that are formed when two or more elements chemically combine.
  • They are made up of molecules that contain different atoms from different elements.
  • For example, KCl is a compound that is made up of two atoms, one potassium atom and one chloride atom.
  • Unlike elements that are made of similar atoms, compounds contains atoms that are not similar from different elements.
3 0
3 years ago
Iridium is a component of cosmic dust that rains down upon the earth at a constant rate. Why did Luis Alvarez suggest measuring
weqwewe [10]

Answer:

In order to determine the rate at which the sediment layers were deposited

Explanation:

Iridium is an important element that belongs to the Platinum group and they are dominantly present in the asteroids and comets. They are the key evidence that suggests the occurrence of an asteroidal impact or a mass extinction event that has taken place in the geological past.

The presence of Iridium mixed with the clay sediments in the boundary between the Cretaceous and Tertiary (K-T boundary) suggested the mass extinction event that wiped out numerous life forms from the earth.

The famous scientist Dr. Luis Walter Alvarez suggested measuring the concentration of Iridium in this K-T boundary in order to determine the rate at which these sediment layers were deposited. They were able to determine that these Iridium elements were present due to the asteroid impact on earth, that wiped out the dinosaurs from the earth. They also considered that this element can be produced from the eruptions of volcanoes.

6 0
3 years ago
Read 2 more answers
-
Dovator [93]

Answer:

5 × 10^-4 L

Explanation:

The equation of the reaction is;

2KClO3 = 2KCl + 3O2

Number of moles of KClO3 = 13.5g/122.5 g / mol = 0.11 moles

From the stoichiometry of the reaction;

2 moles of KClO3 yields 3 moles of O2

0.11 moles of KClO3 yields 0.11 × 3/2 = 0.165 moles of oxygen gas

From the ideal gas equation;

PV= nRT

P= 85.4 × 10^4 KPa

V=?

n= 0.165

R= 8.314 J K-1 mol-1

T= 40+273 = 313K

V= 0.165 ×8.134 × 313/85.4 × 10^4

V=429.4/85.4 × 10^4

V= 5 × 10^-4 L

3 0
3 years ago
I really need help with this question please help me.
oksano4ka [1.4K]
I would say A because it’s the only one that doesn’t conduct electricity. Ionic compounds conduct electricity, and covalent compounds do not.
3 0
3 years ago
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