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Advocard [28]
2 years ago
14

Which of the following ions is formed when a base is dissolved in a solution?

Chemistry
1 answer:
Fofino [41]2 years ago
7 0

Answer:

j1kjfifirjfiffififkffkfjjfjfjfjffntjkffjfjdkdkdkdmdkd

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Ksenya-84 [330]

Answer:

Explanation:

Physical change is a temporary and reversible change in which the physical properties of the substance changes without altering the composition of the substance Eg Melting of ice while chemical change is a permanent and not so easily reversible change in which the identity of the substance is altered to produce one or more substances Eg Combustion

8 0
2 years ago
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4.81*10^24 atoms of lithium
enyata [817]

Answer:

Mass = 55.52 g

Explanation:

Given data:

Number of atoms of Li = 4.81×10²⁴ atom

Number of grams = ?

Solution:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

For example,

1.008 g of hydrogen = 1 mole = 6.022 × 10²³ atoms of hydrogen

For Li:

4.81×10²⁴ atom × 1 mol / 6.022 × 10²³ atom

8 moles

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Mass = 8 mol × 6.94 g/mol

Mass = 55.52 g

4 0
3 years ago
A radioactive nuclide is used to detect eye tumors. An atom of this radionuclide contains 15 protons, 15 electrons, and
statuscvo [17]

Answer: ³²P

Explanation:

The radionuclide in question is known as Phosphorus-32. It is an isotope of Phosphorus that is radioactive and has one more neutron than the normal phosphorus does.

Phosphorus does not exist in nature and is created artificially by bombarding the normal stable phosphorus with neutrons. Due to its radioactive nature, it has proven to be useful in the medical industry where it has been used to detect eye tumors as well as in treating some diseases.

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3 years ago
What is the term for a fine grained soil deposited by the wind
balandron [24]

I think it is called a loess. Please correct me if I am wrong.

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4 Science result the truth while pseudoscience results the myth.

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