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kifflom [539]
3 years ago
10

Please hurry asap I WILL MARK BRAINLEST

Chemistry
2 answers:
Nady [450]3 years ago
7 0

Answer:

A.

Explanation:

gulaghasi [49]3 years ago
4 0

Answer:

an endothermic reaction

Explanation:

An endothermic reaction has occurred.

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Si tuvieras que definir los atomos segun los postulados de Dalton, dirias que los atomos son particulas:
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Según el científico inglés John Dalton, los átomos son esferas elásticas e indivisibles. Así, según él, el átomo es el bloque de construcción más pequeño de la materia. Es homogéneo e indivisible, y todos los átomos de un elemento químico dado son idénticos (es decir, tienen el mismo conjunto de propiedades).

Aunque se descubrió a finales del siglo XIX que los átomos están hechos de partículas aún más pequeñas y pueden sufrir transformaciones, y que los átomos de un elemento dado pueden diferir ligeramente entre sí (isótopos), la teoría de Dalton fue la base para el desarrollo de la tecnología química moderna.

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Xelga [282]
That would be true, since most other stats include helium, calcium, etc
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What is the molar mass of NH4?
astraxan [27]

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NH4

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7 0
2 years ago
Part B Change the distance of the electron from the center position as it moves up and down. What relationship do you notice bet
Mrrafil [7]

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The movement of the electron changes the amplitude of the wave. The farther the electron moves from the center position, the greater the amplitude.

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Why are fluorine (F), chlorine (Cl), and iodine (I) in the same group of the periodic table?
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Fluorine (F), Chlorine (Cl) and Iodine (I) are all found in the same group on the Periodic Table because they have similar physical properties. Since they are all Halogens, they have 7 valence electrons in their outer shell. In order to get a total of 8, they naturally combine with elements of the same isotope (itself), so D comes close to being correct, but it's not the best answer choice.

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3 years ago
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