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nignag [31]
3 years ago
9

The internal energy of a substance Is called​

Chemistry
1 answer:
Gennadij [26K]3 years ago
4 0

Answer:

The internal energy is the total amount of kinetic energy and potential energy of all the particles in the system. ... When the substance melts or boils, energy is put in to breaking the bonds that are holding particles together, which increases the potential energy.

Explanation:

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If sodium (Na) bonds with chlorine (Cl), which statement is true?
Ray Of Light [21]

Answer:

First option is the correct answer

Explanation:

An electron is transferred from sodium to chlorine and an ionic bond is formed.

7 0
3 years ago
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Difference between modern and mendeleev's periodic table​
iren [92.7K]

Mendeleev’s was organized in atomic mass whereas the modern periodic table is organized by atomic number

7 0
3 years ago
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En una estructura de concreto cuyo peso es de 8500 n se apoyo sobre un area de 25cm2,hallar la presion ejercida sobre su base
babymother [125]

Respuesta:

340 N/cm²

Explicación:

Paso 1: Información provista

Peso de la estructura (F): 8500 Newton

Area superficial (A): 25 cm²

Paso 2: Calcular la presión (P) ejercida por la estructura de concreto sobre su base

La presión es igual al cociente entre la fuerza ejercida y la superficie sobre la que se aplica.

P = F/A

P = 8500 N / 25 cm² = 340 N/cm²

5 0
3 years ago
The forces exerted on an object are shown.
marusya05 [52]

Answer:

The object moves up.

Explanation:

I think that's the answer because since F was up that would cause 5 N . To go up.

Tell me if I'm wrong, plz :D

7 0
3 years ago
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If one mole (1.00 mol) of copper (Cu) has 6.02x10^23 atoms of copper, how many molecules are in 1.00 mol of nitrogen gas (N2)
s2008m [1.1K]

Answer is: c. 6.02 x 10^23.

n(N₂) = 1.00 mol; amount of nitrogen molecules.

Na = 6.02·10²³ 1/mol.

Na is Avogadro number or Avogadro constant (the number of particles, in this example nitrogen molecules, that are contained in the amount of substance given by one mole).

N(N₂) = n(N₂) · Na.

N(N₂) = 1.00 mol · 6.02·10²³ 1/mol.

N(N₂) = 6.02·10²³; number of nitrogen molecules.

6 0
3 years ago
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