Freezing point, boiling point, melting point, smell, attraction or repulsion to magnets, colour change, and many more examples.
The formal charge on each atom can be known by counting up the number of valence electrons that is present on each atom.
<h3>What is Lewis structure?</h3>
The term Lewis structure is the representation of a compound using its symbols and showing the valence electrons as dots. This question is incomplete as the Lewis structures were not shown.
If it is shown, we can know the formal charge on each atom by counting up the number of valence electrons that is present on each atom.
Learn more about Lewis structure: brainly.com/question/4144781
Answer:
6.56 × 10²² atoms Xe
Explanation:
Step 1: Find conversions
Molar Mass Xe - 131.29 g/mol
Avagadro's Number: 6.022 × 10²³
Step 2: Use Dimensional Analysis
= 6.55911 × 10²² atoms Xe
Step 3: Simplify
We have 3 sig figs.
6.55911 × 10²² atoms Xe ≈ 6.56 × 10²² atoms Xe
Answer and Explanation:
To calculate this, simply use an equality of proportions:
50 particles : 1 billion particles = <em>x</em> tons : 1.49 million tons
The value of <em>x</em> can be solved for by multiplying the ratio on the left by the value 1.49 million / 1 billion:
So, <em>x</em> = (50)(0.00149) tons = 0.0745 tons
Then, do the same thing for the larger concentration:
<em>x</em> = (200)(0.00149) tons = 0.298 tons
Answer:
One AMU or 1 Atomic Mass Unit
