Answer:
Explanation:
18.01528 g/mol. I googled this, but it would be 16 for O plus 2 for the 2 H's. 18 g/mol divided by 12.5g=1.44 mol of H20.
1.44mol* molecules/mol= 8.6688*10^23.
The J.J. Thomson's experiment on the negatively charged particles or electrons.
<h3>
Which atomic models does Thomson’s experimental evidence support?</h3>
J.J. Thomson's experiments with the cathode ray tube showed that all atoms contain tiny negatively charged subatomic particles or electrons. Thomson proposed the plum pudding model of the atom, which had negatively-charged electrons embedded within a positively-charged "soup." He also determined that the negatively charged particle were much lighter than the positively charged particle.
So we can conclude that: The J.J. Thomson's experiment on the negatively charged particles or electrons.
Learn more about Thomson’s experiments here: brainly.com/question/13082100
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Answer:
False
Explanation:
It becomes a heterogeneous mixture
Answer is: <span>the charge of the iron in this compound is +2.
Atomic mass of iron is 55,8 g/mol.
Atomic mass of chlorine is 35,5 g/mol.
If compound is FeCl, molar mass would be 55,8 </span>g/mol + 35,5 g/mol = 91,3 g/mo, that is not correct.
If compound is FeCl₂, malar mass of compound would be:
55,8 g/mol + 2·35,5 g/mol = 126,8 g/mol, that is correct.
Oxaidation number of chlorine is -1.
Well, covalent bonding usually occurs between non-metals.
So some examples of covalent compounds may include:
O2 – oxygen.
Cl2 – chlorine.
H2 – hydrogen
as these all occur between non metals.