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SVETLANKA909090 [29]
3 years ago
9

What is the Answer of the picture

Chemistry
2 answers:
Neko [114]3 years ago
8 0

Answer: d

Explanation: I got it right

svlad2 [7]3 years ago
4 0
D

Have a good day :)
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Why do atoms form bonds or why do bonds form?
stiv31 [10]

Answer:

Atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. A chemical bond is a force of attraction between atoms or ions

Explanation:

7 0
2 years ago
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

Mass in gram:

Mass = number of moles × molar mass

Mass = 8 mol × 6.94 g/mol

Mass = 55.52 g

4 0
3 years ago
As shown by the periodic table, why do the elements potassium and sodium have similar chemical properties?
nadya68 [22]
Hey mate
This is the answer

The elements potassium and sodium have similar chemical properties because they have the same number of valence electrons and form +1 ions.

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3 0
2 years ago
What is the word equation for 2Mg+O2=2 MgO
yarga [219]

Answer:

magnesium + oxygen ----> magnesium oxide

8 0
2 years ago
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Two reasons why emerging diseases are especially harmful to humans. (is science)
Aleonysh [2.5K]

Answer:

Many emerging diseases arise when infectious agents in animals are passed to humans (referred to as zoonoses). As the human population expands in number and into new geographical regions, the possibility that humans will come into close contact with animal species that are potential hosts of an infectious agent increases.

Explanation:

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2 years ago
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