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just olya [345]
3 years ago
9

Celery stalks that are immersed in fresh water for several hours become stiff and hard. similar stalks left in asalt solution be

come limp and soft. from this we can deduce that the cells of the celery stalks are
Chemistry
1 answer:
galina1969 [7]3 years ago
4 0
Plasmolysed because of osmosis as the salt solution has lower water potential than the cells of the stalk
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The following balanced equation shows the decomposition of ammonia (NH3) into nitrogen (N2) and hydrogen (H2). 2NH3 → N2 + 3H2 A
Triss [41]
The decomposition of ammonia is characterized by the following decomposition equation:
                                  2NH₃<span>   →   N</span>₂  <span> +   3H</span>₂   

The mole ratio of N₂  :  H₂  is  1  :  3

    If the number of moles of N₂  =  0.0351 mol
    Then the number of moles of H₂  =  0.0351 mol  × 3
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6 0
3 years ago
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timofeeve [1]
Your answer would be an Element can't be separated into simpler substances or converted into another substance by chemical process.




Hope that helps!!!
8 0
3 years ago
How many grams of h3po4 are in 255 ml of a 4.50 m solution of h3po4?
murzikaleks [220]

H3PO4 has molecular weight of approximately 98 grams per mole. 4.50 M is equal to 4.50 mole per 1000 mL solution of H3PO4. 255 mL times 4.50 mol /1000 mL times 98 g/mol is equal to 112.455 grams. Note that I automatically equate 1 Liter to 1000 mL since the given volume is in mL for easier computation.

7 0
3 years ago
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