Answer:
I think this Is the correct answer
Explanation:
nitrogen is an element of atomic number 7 and so has 5 electrons in its valence shells. it requires 3 more electrons to complete its octet.nitrogen shares an electron with 3 atoms of hydrogen each to achieve this. hydrogen being an element with atomic number 1 requires 1 more electron to reach the electronic configuration of its nearest noble gas, helium. so it shares an electron with nitrogen
Atmospheric properties, tectonic plates... there are multiple.
The sample with the largest number of oxygen atoms will be calcium perchlorate.
<h3>Number of atoms in a compound</h3>
Since we are not looking at the number of moles, the mass of the compounds has no bearing on the number of atoms of oxygen.
- The chemical formula for carbon dioxide is
. Thus, it has 2 atoms of oxygen. - The chemical formula for potassium chlorate is
. Thus, it has 3 oxygen atoms. - The chemical formula for calcium perchlorate is
. Thus, it has 8 atoms of oxygen. - The chemical formula for sodium hydroxide is NaOH. Thus, it has 1 atom of oxygen.
Therefore, the compound with the largest number of oxygen atoms is calcium perchlorate.
More on the number of atoms in compounds can be found here: brainly.com/question/1686912
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Answer:
239.0 g/mol
Explanation:
The molar mass of a compound is the sum of all the molar masses of all the individual elements present in the compound.
The molar mass of Ca(ClO4)2 can calculated as follows:
= 40 + 2[ 35.5 + (16x4)]
40 + 2[ 35.5 + 64]
40 + 2[99.5]
40 + 199
239g/mol
Centaurus because it also has ten of the most brightest stars
