Answer:
Hurricane Flash flood tsunami and tornado
Explanation:
What is a severe weather event?
A Severe weather event is 1-2 inches of hail (25-51 mm) an F1 tornado or winds up from 58-75 miles per hour (or 93 to 121 km/hour) but there is something called a Significant severe weather which is more than what is listed. So we already know that a hurricane, tornado, flash flood and tsunami are ALL severe weather events. But what about Earthquake and Volcano. While yes, they ARE considered severe events, they are NOT titled under these criteria.
The amount of grams of hydrogen that are in the water sample is;
3.985 g
<h3>Avogadro's number</h3>
We are given that;
Number of moles of oxygen in a sample of water = 12 × 10²³
- Now, the chemical formula of a molecule of water is H₂O. This means that for every 1 atom or molecule of oxygen, there must be 2 hydrogen atoms or molecules present.
Since Number of moles of oxygen in the sample is 12 × 10²³, then number of moles of hydrogen will be twice that = 2 × 12 × 10²³ = 24 × 10²³ moles
Now, molar mass of hydrogen is 1 g/mol and we know that;
Molar mass = Avogadro's number(6.023 × 10²³) moles
Thus;
6.023 × 10²³ moles = 1 g/mol
Thus; 24 × 10²³ moles of hydrogen = ( 24 × 10²³ × 1)/(6.023 × 10²³)
⇒ 3.985 g
Read more on Avogadro's number at; brainly.com/question/914267
Answer:
The insertion of an extra nucleotide into a DNA strand
