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tino4ka555 [31]
3 years ago
10

Which of the following would be most useful in trying to obtain procedural information to replicate an experiment previously pub

lished?
Chemistry
1 answer:
Jet001 [13]3 years ago
7 0

Answer: Peer-reviewed journal article is the most useful because the information in them had been carefully scrutinized and aproved by people who are experts in that particular field.

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Which two elements have chemical properties that are most similar?
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Answer:

Li and Na

Explanation:

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Of the atoms below, __________ is the most electronegative.<br> PLZ HELP I'LL AWARD BRINLIEST.
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Help! Homework due tomorrow ​
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You put precipitation in the wrong place the answer is D+A (number 4)
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2 years ago
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17. Which of the following describes a condition in which an individual would not hear an echo?
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<span>The right answer is D. In a situation where the sound wave reaches the ear and the reflected wave reaches the ear less than 0.1 seconds later, the individual would not be able to hear an echo. There needs to a far more significant delay between the sound and the reflection of said sound reaching the listener's ear for the echo effect to become apparent.</span>
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3 years ago
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How many grams of aluminum chloride are needed to react completely with 1.084g lithium sulfide?
Oksi-84 [34.3K]
Molar mass :

Li₂S = <span>45.947 g/mol

AlCl</span>₃ = <span>133.34 g/mol

</span><span>3 Li</span>₂<span>S + 2 AlCl</span>₃<span> = 6 LiCl + Al</span>₂S₃

3 * 45.947 g Li₂S ----------> 2 * <span>133.34 g AlCl</span>₃
1.084 g Li₂S ----------------> ?

Mass Li₂S = 1.084 * 2 * 133.34 / 3 * 45.947

Mass Li₂S = 289.08112 / 137.841

Mass Li₂S = 2.0972 g 

hope this helps!

5 0
3 years ago
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