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Valentin [98]
3 years ago
8

2. The heat energy fequired to change a

Chemistry
1 answer:
emmasim [6.3K]3 years ago
8 0
Heat of solution (I believe)
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Find the volume of 20g of H₂ at STP<br><br>​
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Answer:224

Explanation:

We should answer it with Stoichiometry

We say: 20 g H2× (1 mol/ 2g)× ( 22.4 lit/ 1 mol) = 224

Means: we have 20 grams and every 2g H2, equals to 1 mol of it and every 1 mol of H2, equals to 22.4 lit( because of STP)

hope you got this:)

6 0
3 years ago
The elements beyond uranium on the periodic table of the elements are called the ------- elements
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The answer is elements
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the element aluminum forms a cation with the charge fill in the blank 2 . the symbol for this ion is , and the name is fill in t
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The element aluminum forms a cation with the charge of +3. The symbol for this ion is Al³⁺, and the name is aluminum ion. The number of electrons in this ion 10.

<h3>What are ions?</h3>

Ions are formed when an atom gains or loses electrons.

Metals form positive ions by a loss of electrons whereas non-metals form negative ions by gaining electrons.

The aluminum ion is formed when aluminum loses three electrons to form Al³⁺ ion which has 10 electrons.

in conclusion, ions are formed by a gain or loss of electrons.

Learn more about ions at: brainly.com/question/490569

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5 0
1 year ago
Amber has developed a line of organic lotions and handmade soaps with unique, herb-based scents and a touch of bee balm. She pla
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Exclusive distribution strategy

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Only selected retailers can sell a manufacturer's brand. Exclusive distribution can benefit manufacturers by assuring them that the most appropriate retailers represent their products.

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3 years ago
Walls made of paraffin wax, a covalent compound, help keep the temperature in a room steady as night changes into day and day in
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The wall would absorb extra heat during the day when the sun is out, then release the heat back into the room when the sun goes down.
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3 years ago
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