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3 years ago

The motions of your digestive system digest food and ___.

Chemistry

2 answers:

Alenkinab [10]3 years ago

3 0

Your answer will be d

wariber [46]3 years ago

3 0

Answer: d. Acids

Explanation:

In digestive system the movement of the walls of the organs takes place to facilitate the proper mixing of the food and liquid with digestive juices. The movement of esophagus, intestine and stomach is called as peristalsis.

The acids are present inside the food and also the HCl is released by the stomach the digestive system facilitates their digestion immediately so that they do not harm the stomach wall causing ulcers and prevents acidity.

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3 years ago

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3 years ago

Give the complete ionic equation for the reaction (if any) that occurs when aqueous solutions of lithium sulfide and copper (II)

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Answer:

$2Li^+_{(aq)}+S^{2-}_{(aq)}+Cu^{2+}_{(aq)}+2NO_3^{-}_{(aq)}\rightarrow CuS_{(s)}+2Li^+_{(aq)}+2NO_3^{-}_{(aq)}$

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Complete ionic equation : In complete ionic equation, all the substance that are strong electrolyte and present in an aqueous are represented in the form of ions.

The balanced molecular equation will be,

$Li_2S_{(aq)}+Cu(NO_3)_2_{(aq)}\rightarrow CuS_{(s)}+2LiNO_3_{(aq)}$

The complete ionic equation in separated aqueous solution will be,

$2Li^+_{(aq)}+S^{2-}_{(aq)}+Cu^{2+}_{(aq)}+2NO_3^{-}_{(aq)}\rightarrow CuS_{(s)}+2Li^+_{(aq)}+2NO_3^{-}_{(aq)}$

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3 years ago