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Deffense [45]
3 years ago
10

Use the periodic table entry below to answer the following question. What is the atomic mass of the element cobalt (Co)?

Chemistry
2 answers:
Ilia_Sergeevich [38]3 years ago
8 0
I want to say 59 atomic mass units<span> is beta decay, but I'm just guessing from previous Chem. class.</span>
Maslowich3 years ago
8 0
58.9 is the atomic mass
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Describe the energy of the products in comparison to the energy the atoms had when the were wandering around the room free.
Over [174]

Answer: The atoms of the solid products are tightly packed whereas those in gas are loose.

Explanation:

Atoms in the solid structure are linked to each other by strong force of attraction and they collectively form an three-dimensional structure. The binding of the atoms form the shape of the solid product. The gas exhibit free atoms in it. The atoms are not linked to one another by strong force of attraction. The atoms as a part of gas have higher energy as those present in the solid products. So, the atoms of the gas wander freely as compared to those in the solid products.

7 0
3 years ago
A chemistry student adds a quantity of an unknown solid compound X to 5.00 L of distilled water at 15.° C . After 10 minutes of
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Answer:

34 g/100 mL

Explanation:

The solubility of a compound can be expressed in g/100mL, for this we must divide the mass of the compound that dissolves in the solute by the volume of the solvent.

The solvent, in this case, is water, and that mass of the solute X that dissolved is the mass that was recovered after the solvent was drained and evaporated. So the solubility of X (S) is:

S = 0.17 kg/5L

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S = 34 g/100 mL

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3 years ago
Can someone help me with this question?
Softa [21]

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