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Delicious77 [7]
2 years ago
14

Can someone help me with chemistry

Chemistry
1 answer:
Komok [63]2 years ago
3 0

Answer:

The resulting pH will be greater than 7 because potassium hydroxide is less concentrated than the hydrochloric acid.

Explanation:

hope this helped!

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Which weighs more 10g of iron or 10g of water
Svet_ta [14]

Neither. They are both 10 grams so they weigh the same.

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3 years ago
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The molar mass of H2O is 18.01 g/mol. The molar mass of O2 is 32.00 g/mol. What mass of H2O, in grams, must react to produce 50.
Annette [7]
This reaction is called the electrolysis of water. The balanced reaction is:
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50.00 grams O2 ( 1 mol O2 / 32 grams O2) ( 2 mol H2O / 1 mol O2) ( 18.01 g H2O / 1 mol H2O ) = 56.28 g H2O
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3 years ago
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A compound is formed when 9.03 g
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The percent composition  of this compound :

Mg = 72.182%

N = 27.818%

<h3>Further explanation</h3>

Given

9.03 g  Mg

3.48 g  N

Required

The percent composition

Solution

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= 9.03 g + 3.48 g

= 12.51 g

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N : 3.48 / 12.51 g x 100% = 27.818%

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Name three sources of CO2
dangina [55]

Answer:

1.Respiration of animals and plants.

2.The burning of fossil fuels.

3.Bacteria decompose corpses.

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Displaement of ammonia from its salt
Dvinal [7]
Ill say <span>calcium hydroxide but hope this helps :)</span>
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