3 years ago

Define solubility (in science)

1 answer:

4 0

<span>Solubility is the property of a solid, liquid or gaseous chemical substance called solute to dissolve in a solid, liquid or gaseous solvent.</span>

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How many moles of Cl- ions are needed to completely combine with 0.25 moles of Mg+2 ions?

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<span>The number of moles of Cl- ions needed to combine completely with 0.25 mole of Mg+2 ions is:
0.50.</span>

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3 years ago

What is the percent by mass of oxygen in ca(oh)2? [formula mass = 74.1]

andre [41]

16(2)/74.1=.431

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Two fossils with reptilian characteristics are part of a shipment of fossils sent to a museum. The only difference is that one o

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The one with feather. because it was probably form the Dino era

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3 years ago

When a 235 92U nucleus is bombarded by neutrons (10n) it undergoes a fission reaction, resulting in the formation of two new nuc

user100 [1]

Answer:

$^{139}_{56}Ba$

Explanation:

The fission reaction taking place given in the question is:

$^{235}_{92}U+^{1}_{0}n\rightarrow ^{A}_{Z}Ba+^{94}_{36}Kr+3^{1}_{0}n$

The mass is conserved in the reaction.

So,

235 + 1 = A + 94 + 3×1

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Also, number o protons remain same. So,

92 = Z + 36

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The isotopic symbol is $^{139}_{56}Ba$

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3 years ago

What does initial buret and final buret reading mean

ikadub [295]

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3 years ago