DNA testing which I think is the largest breakthrough.
Answer:
Kettle lake
Explanation:
A kettle lake forms when a receeding glaciers leaves glacier behind in a shallow depression called a kettle.
Kettles and kettle lakes are products of glacier deposition. They are mostly attributed to the receeding phase of a glacier. The mouth of a retreating glacier are usually laden with a mix of melt water and sediments. As the glacier continues to retreat, it leaves behind stagnant ice that must have been buried with the sediment. When the ice melts, a kettle which is an hollow depression forms and the water in it makes it a kettle lake.
Answer:
4.67M
Explanation:
The concentration of methanol (CH3OH) can be calculated using the following:
Molarity (M) = number of moles(n)/volume(v)
However, mole is not given. It can be obtained by using:
Mole = mass / molar mass
Where; mass = 34.4g
Molar mass (MM) of CH3OH is:
= 12 + 1(3) + 16 + 1
= 12 + 3 + 17
= 32g/mol
mole = 34.4/32
mole = 1.075mol
The volume needs to be converted to L by dividing by 1000
230mL = 230/1000
= 0.230L
Molarity = mol/volume
Molarity = 1.075/0.230
Molarity = 4.6739
Molarity = 4.67M
The concentration of CH3OH in solution is 4.67M
Approximately 1,5.1023 molecules
Answer:
Carbon
Explanation:
The way to identify an element is by looking at the number of protons the atom has. Every element has its own atomic number. This atom has 6 protons. If you look at the periodic table, you can see that the atom with the atomic number of 6 is carbon.