Atoms are the smallest division of the element. The potassium atoms present in the 235 gm of the compound is 
atoms.
<h3>What is the number of atoms?</h3>
Given,
- Mass (m) of Potassium sulfide
= 235 gm - Molar mass (M) of Potassium sulfide = 110.26 g/mol
Calculate the number of moles as:
In the given compound 
, there are two atoms of potassium and one atom of sulphur.
If, 1 mole = 
atoms of potassium
Then, 2.13 moles = X atoms
Solving for X:
Therefore, option c. is correct.
Learn more about atoms here:
brainly.com/question/11411852
Answer:
The answer to your question is below
Explanation:
a) CI Chlorine is located in group VIIA, so its must gain one electron to be stable.
b) Se Selenium is located in group VIA, it must gain 2 electrons to be stable.
c) N Nitrogen is located in group VA, it must gain 3 electrons to be stable.
d) I Iodine is located in group VIIA, so it must gain 1 electron to be stable.
e) S sulfur is located in group VIA, so it must gain 2 electrons to be stable.
They are similar because both of them slow things down.
Answer:
66.7 g
Explanation:
Number of atoms = 2×10²¹
Mass of 2×10²¹ atoms = 0.4 g
Mass of 0.5 moles of that element = ?
Solution:
1 mole contain 6.022×10²³ atoms
2×10²¹ atoms × 1 mol / 6.022×10²³ atoms
0.33×10⁻² mol
0.003 mol
0.003 mole have mass of 0.4 g
0.5 mol have mass 0.5/0.003×0.4 g = 66.7 g
Answer:
Carbon dioxide is a product (cellular respiration)
Carbon dioxide is a reactant(photosynthesis)
Carried out in animals(cellular respiration)
Carried out in plants(both)
Chemical reaction(cellular respiration)
Oxygen is a product(photosynthesis)
Oxygen is a reactant(cellular respiration)
Produces usable energy source(photosynthesis)
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