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Elena-2011 [213]
3 years ago
7

How does rock candy relate to the igneous rock formation?

Chemistry
1 answer:
sveta [45]3 years ago
6 0

Answer:

The candy is heated then cooled, turning solid like a igneous rock.

Explanation:

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How many moles in one gram of Calcium ??
kirill [66]

Answer:

0.0249 moles in 1 g of Ca

Explanation:

Let's think in the molar mass of Ca.

Ca = 40.08 g/mol

So 1 mol weighs 40.08 grams, or in the opposite 40.08 grams is the weigh of 1 mol

The rule of three will be:

40.08 g are contained in 1 mol

1 g may be contained in (1 . 1) / 40.08 = 0.0249 moles

8 0
3 years ago
Cuando el oxígeno reacciona con el calcio produce un sólido blanco muy utilizado en la preparación de cementos. ¿Cuál de las sig
8_murik_8 [283]

Answer:

2Ca + O₂ → 2CaO

Explanation:

Cuando el Calcio (Ca) reacciona con oxígeno (O₂) se produce cal (CaO). La cal es un sólido inodoro de color blanco a grisáceo. La cal es un óxido que se encuentra presente en el cemento y su cuantificación permite determinar la calidad y el tipo de cemento a utilizar.

La reacción que describe el proceso anterior es:

Ca + O₂ → CaO

Para balancear los oxígenos, se deben poner 2 CaO como producto:

Ca + O₂ → 2CaO

Para balancear los calcios, se pone como coeficiente del Ca un 2:

<h3>2Ca + O₂ → 2CaO</h3><h3 />

Esta última es la reacción que describe el proceso anterior

6 0
3 years ago
3 examples of why the result of the cell cycle is important
Alekssandra [29.7K]

its is important because without cells we wouldn't know about reproduction and they are different types of cells such as plant cells egg cells sperm cells ect without them we wouldn't know about how we are born

8 0
3 years ago
PLEASE HELP
Mars2501 [29]

Answer: it’s A

Explanation:

3 0
3 years ago
The diagram represents an atom of sodium combined chemically with one atom of chlorine to form a sodium chloride molecule. Sodiu
Tpy6a [65]

Answer:

It is an example of ionic compound and ionic salt

3 0
3 years ago
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