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igor_vitrenko [27]
3 years ago
14

Definition of atomic number ​

Chemistry
2 answers:
Andrew [12]3 years ago
7 0

Answer:

its basically represents the number of protons in the nucleus which in a neutral atom equals the number of electrons outside the nucleus and that determines the place of the element in the periodic table

Explanation:

sry i its too long

hope it helps

arsen [322]3 years ago
4 0

The atomic number or proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of every atom of that element. The atomic number uniquely identifies a chemical element. It is identical to the charge number of the nucleus. In an uncharged atom, the atomic number is also equal to the number of electrons.

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please help!!! The gravitational force between the objects depends on the __________ of the objects and the ___________ between
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The gravitational force between the objects depends on the mass of the objects and the distance between them.
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How to know what gases have more effusion?
OlgaM077 [116]

Answer:

If you have ever been in a room when a piping hot pizza was delivered, you have been made aware of the fact that gaseous molecules can quickly spread throughout a room, as evidenced by the pleasant aroma that soon reaches your nose. Although gaseous molecules travel at tremendous speeds (hundreds of meters per second), they collide with other gaseous molecules and travel in many different directions before reaching the desired target.

Explanation:

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6 0
3 years ago
For a reversible reaction, what would a large equilibrium constant indicate?
siniylev [52]

(D) At equilibrium, the concentration of the products will be much higher than the concentration of the reactants.

8 0
3 years ago
Dolton’s theory states that atoms are the smallest possible parts of elements. In a chemical reaction, atoms will be
Alenkasestr [34]

Answer:

Joined together to form compounds or rearranged.

Explanation:

Dalton's Theories

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3 0
3 years ago
Consider the following reaction:
slava [35]

Answer:

Option D is correct =  58 g

Explanation:

Data Given:

mass of LiOH = 120 g

Mass of Li3N= ?

Solution:

To solve this problem we have to look at the reaction

Reaction:

                  Li₃N (s) + 3H₂0 (l) -----------► NH₃ (g) + 3LiOH (l)

                    1 mol                                                      3 mol

Convert moles to mass

Molar mass of LiOH = 24 g/mol

Molar mass of  Li₃N = 35 g/mol

So,

                   Li₃N (s)        +     3H₂0 (l) -----------► NH₃ (g) + 3LiOH (l)

                1 mol (35 g/mol)                                                   3 mol (24 g/mol)

                   35 g                                                                         72 g

So if we look at the reaction 35 g of Li₃N react with water and produces 72 g of LiOH , then how many g of Li₃N will be react to Produce by 120 g of  LiOH

For this apply unity formula

                        35 g of  Li₃N ≅ 72 g of LiOH

                        X of  Li₃N ≅ 120 g of LiOH

By Doing cross multiplication

                  Mass of Li₃N = 35 g x 120 g / 72 g

                   mass of Li₃N =  58 g

120 g of LiOH will produce from 58 g of Li₃N

So,

Option D is correct =  58 g

5 0
3 years ago
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