1. In the models, what particles do the colored and plain sesame seeds represent? What particles do the poppy seeds represent

Chemistry

2 answers:

Veronika [31]4 years ago

6 0

Ok the answers to the hole .doc is
1. Neutrons, Protons, and Electrons
2. N<span>ucleus
3. N</span>eutrons and Protons
4. Electrons
5. Because they represent different things (I would put this in your own words)

enyata [817]4 years ago

4 0

<h2>Answer 1) : The colored and plain sesame seeds represent the subatomic particles neutrons and protons. </h2><h3>Explanation :</h3>

The attached model of the atom has subatomic particles as neutrons and protons; which are present in the center of the nucleus of the atom. Where neutrons are neutrally charged particles in the nucleus and protons are positively charged particles present in the nucleus of the atom.

<h2>Answer 2) The poppy seeds represent the electrons.</h2><h3>Explanation :</h3>

The poppy seeds used in this atomic model represents the revolving electrons around the the nucleus of the atom in orbits. These are negatively charges subatomic particles which revolves around the nucleus.

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The empirical formula of the compound is calculated as follows

first calculate the mass of oxygen= 12-(4.09 +3.71)= 5.02g

then calculate the moles of each element, moles = mass/ molar mass

moles of K = 4.09g/39 g/mol(molar mass of K) = 0.105 moles
moles of Cl = 3.71g/35.5 g/mol(molar mass of Cl) = 0.105 moles
moles of O = 5.02g/ 16g/mol(molar mass of O) = 0.314 moles

then calculate e mole ratio by dividing each mole by the smallest number of moles ( 0.105 moles)

K=0.105/0.105= 1
Cl=0.105 /0.105=1
O= 0.314/0.105=3

therefore the empirical formula = KClO3

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