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irina [24]
3 years ago
11

COMPOSICIÓN PORCENTUAL

Chemistry
1 answer:
Allisa [31]3 years ago
8 0
Óxido de hierro (lll)
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How many neutrons are in lithuim-8
irinina [24]

Answer:

5 neutrons

Explanation:

There five isotopes of lithium. The most stable and abundant is lithium-7.

Its percentage is 92.5%. It has four neutrons. All lithium isotopes have same atomic number but different atomic mass because of different number of neutrons.

Lithium-8 have five neutrons.

Lithium-9 have six neutrons.

Lithium-11 have eight neutrons.

Lithium-4 has one neutron.

Lithium is alkali metal.

It is present in 1st group.

Its atomic number is 3.

Its atomic mass is 7 amu.

Lithium salts are used in psychiatric medicine.

4 0
3 years ago
Describe the trend for atomic radius from left to right across a period. Use atomic
Allisa [31]

As you move across a period, the atomic radii decreases. ... As you move across a period, electrons are added to the same energy level while protons are also being added. The concentration of more protons creates a higher effective nuclear charge.

6 0
2 years ago
Which substance could any excess not be removed by filtration​
horrorfan [7]

Answer:

sodium hydroxide

Explanation:

i think sodium hydroxide

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3 years ago
PLEASE HELP ASAP ESSAY WORTH 15 POINTS! ONLY GENIUS!
Sliva [168]

Answer:

According to the law of conservation of mass, the mass of reactants will be equal to the mass of the products.

Explanation:

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3 years ago
Please Answer ASAP
adelina 88 [10]

The answer to this question would be S2o6 which is C.


3 0
3 years ago
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