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Natali [406]
3 years ago
8

Which element had the smallest atomic radius

Chemistry
1 answer:
boyakko [2]3 years ago
5 0

helium at 31 picometers

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What is this a solid, liquid, or a gas, "The particles that are locked in fixed positions"
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States of matter are determined by temperature. When the temperature is more cold, the particles move less. The colder the temperature, the more solid something becomes. Because the particles are in fixed positions, they do not move much, they are colder, and they are solid. Also, you cannot pass your hand through locked atoms. If you swipe your hand through water or gas, it parts. Solids, however, are fixed and cannot be passed by without significant force to break it.
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Which describes Lithium chloride
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Lithium chloride is a white solid hygroscopic soluble in water.

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naturally occurring bromine molecules, br2 have masses of 158, 160, and 162. they occur in the relative abundances 25.69%, 49.99
4vir4ik [10]
The average atomic mass of an element can be determined by multiplying the individual masses of the isotopes with their respective relative abundances, and adding them. 

Average atomic mass of Br = 158 amu(0.2569) + 160 amu(0.4999) + 162 amu(0.2431)
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As described in the problem, the relative abundance for Br-79 is 25.69%. This is because 2 atoms of Br is equal to 79*2 = 158 amu. Similarly, the relative abundance of Br-81 is 81*2 = 162, which is 24.31%.
4 0
3 years ago
The amount of heat absorbed when 5.5g of aluminum is heated from 25.0c to 95.0c the specific heat of aluminum is 0.897J/(gc)​
NemiM [27]

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Q=21.99 kJ

Explanation:

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What is the volume of 120 mg of water?<br> A. 1.2 dL<br> B. 120 mL<br> C. 120 L<br> D. 1.2 L
mojhsa [17]
I would say B but I am not sure so sorry if it is wrong!!
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