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blsea [12.9K]
3 years ago
10

Can somebody please help me ! :(

Chemistry
2 answers:
avanturin [10]3 years ago
8 0

Answer:

325

Explanation:

Helen [10]3 years ago
5 0

Answer:

325

Explanation:

velocity = 3250 Hz x 0.1 m

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Answer:

Los elementos de la tabla periódica se distribuyen sobre la base de similitudes.

Explicación:

Los diferentes tipos de elementos se distribuyen en 8 grupos de tabla periódica en función de sus propiedades. Los elementos que tienen propiedades similares se colocan en el mismo grupo. Por ejemplo, el primer grupo de la tabla periódica son los metales alcalinos. Todos los metales alcalinos tienen algunas propiedades similares, es decir, un electrón en su capa más externa, alta reactividad y forma metálica, mientras que, por otro lado, los ocho elementos del grupo son gases nobles que tienen una capa más externa completa y no tienen reactividad.

3 0
3 years ago
The minimum amount of energy that has to be added to start a reaction is the
Svetllana [295]
The minimum amount of energy that has to be added to start a reaction is the activation energy, which starts the reaction. It activates it. 
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Reika [66]

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An acute triangle (or acute-angled triangle) is a triangle with three acute angles (less than 90°).

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3 years ago
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the answer to this question is B.
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