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Fittoniya [83]
3 years ago
10

Particles are arranged in a crystal structure in a sample of:

Chemistry
1 answer:
postnew [5]3 years ago
6 0
The answer is number 4. Ag(s) or Solid Silver. Silver in a solid phase has a face centered cubic crystal structure. Among your choices, silver is the only example of particles that are arranged in their crystal structure while the other choices are gases and liquid. Liquid and gases have loose atoms that do not form crystal structures. 
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Please help!!! I will mark you brainiest!!!
shepuryov [24]

Answer:

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Explanation:

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2 years ago
How many electrons are in an Fe2+ ion?<br> (1) 24 (3) 28<br> (2) 26 (4) 56
fomenos
The answer is (1) 24. There are 26 protons in nucleus of Fe atom. There is 26 electrons in Fe atom. Fe atom loses 2 electrons and change to Fe2+ ion. So there is 24 electrons in Fe2+ ion.
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3 years ago
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In an experiment, 40 g of grain alcohol releases 2,950 ) as it cools from 51 °C. Calculate the final temperature of the grain al
Masja [62]

Explanation:

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3 years ago
When calcium metal is placed in water, hydrogen gas bubbles out, leaving a highly alkaline (basic) solution. Write the balanced
Blababa [14]

Answer:

Ca (s) + 2H₂O (l) →  Ca(OH)₂ (aq)  +  H₂ (g)

Explanation:

When solid calcium reacts with water, it produces the correspondent hydroxid and hydrogen gas.

The hydroxid which is produced, is the calcium hydroxid which is a strong base, that's why you talk about a highly alkaline solution.

Ca (s) + 2H₂O (l) →  Ca(OH)₂ (aq)  +  H₂ (g)

Calcium hydroxide is a strong base, that dissociates in water, as this:

Ca(OH)₂  →  Ca²⁺ (aq)  + 2OH⁻ (aq)

It's a basic solution,  is providing hydroxyl ions to the medium

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