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Ivahew [28]
3 years ago
6

Answer the 4 questions pls

Chemistry
2 answers:
Vedmedyk [2.9K]3 years ago
7 0
A b A or just the person above me said
laiz [17]3 years ago
4 0
A and c have equal densities
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As the temperature of seawater decreases, its density _____.
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Pretty certain its B. The density would increase because the seawater decreases. Kinda like when your swimming and the farther u go down ur ears start to hurt cause the density has increased. 
Hope I helped.
4 0
3 years ago
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How do they become negative ions?
LekaFEV [45]

Answer:

An atom that gains a negative electron, it becomes a negative ion. If it loses an electron it becomes a positive ion. Picture 1.8 Some atoms lose electrons and become positive ions. Others gain electrons and become negative ions.

Explanation:

...

6 0
4 years ago
If 45.6 g of Fe2O3 reacts with excess water, how much heat is required?
tangare [24]

Explanation:

I

have not yet learnt chemistry so sorry

8 0
3 years ago
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Considere un elemento "X" que posee como valencias 2, 4 y 6. En su nomenclatura tradicional, considerando la valencia cuatro, es
Ierofanga [76]

Answer:

"ite"

Explanation:

Se sabe que los elementos del grupo 16 de la tabla prioritaria muestran estados de oxidación o valencias de 2,4 y 6 respectivamente, dependiendo del compuesto formado.

Por ejemplo, el azufre forma los siguientes compuestos;

sulfato de sodio (el azufre tiene una valencia de 6)

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Sulfuro de sodio (el azufre tiene una valencia de 2)

Por lo tanto, en compuestos en los que exhiben una valencia de 4, la terminación común es "ite"

8 0
3 years ago
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What is the answer to mad of two or more substances together in the same place but not chemically combined
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I'm quite sure the 'F' is a mistake, and the word is MIXTURE.
8 0
3 years ago
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