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Taya2010 [7]
3 years ago
5

What is the mass in gram of 1 atom of sodium(Na) ??

Chemistry
1 answer:
Montano1993 [528]3 years ago
8 0
I have no idea srry....

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Although chemical digestion occurs throughout the digestive system, it mostly occurs in the A esophagus and stomach
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D: stomach and intestines :)
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An atom has 20 protons, 26 neutrons, and 20 electrons. what could be the atomic mass of this atom?
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1. Which on these elements has chemical properties most similar to
Gwar [14]

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A

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2 years ago
Potassium chlorate decomposes into potassium chloride and oxygen gas. How many grams of oxygen are produced when 1.06 grams of p
kifflom [539]

The amount of oxygen that are produced when 1.06 grams of potassium chlorate decompose completely is 0.64 grams.

<h3>What is the relation between mass & moles?</h3>

Relation between the mass and moles of any substance will be represented as:

  • n = W/M, where
  • W = given mass
  • M = molar mass

Moles of potassium chlorate = 1.66g / 122.5g/mol = 0.0135mole

Given chemical reaction is:

2KClO₃ → 2KCl + 3O₂

From the stoichiometry of the reaction, it is clear that:

2 moles of KClO₃ = produces 3 moles of O₂

0.0135 moles of KClO₃ = produces (3/2)(0.0135)=0.02 moles of O₂

Mass of oxygen = (0.02mol)(32g/mol) = 0.64 g

Hence produced mass of oxygen is 0.64 grams.

To now more about mass & moles, visit the below link:
brainly.com/question/18983376

#SPJ1

5 0
2 years ago
How does the electron arrangement change moving vertically down a group?​
vampirchik [111]

Answer:

Electrons arrangement change is almost constant down the group, hence nuclear charge is almost constant.

But the energy levels on which electrons are arranged increase down the group, hence shielding or screening effect increases.

6 0
3 years ago
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