Answer:
A. Compound
B. Element
c. Compound
d. Mixure
e. Element
F. Compound
Srry but i don't know if its correct srry
Hope his helps
Option A. Hydrogen Ions
The dissolution of carbon dioxide in the oceans produce hydrogen ions as when carbon dioxide is dissolved in the ocean it leads to Ocean Acidification. This Acidification produces the hydronium ions as more acidic nature implies higher concentrations of hydrogen ions.
Carbon dioxide is a gas that readily dissolves in water to give Carbonic Acid , bicarbonate ions and carbonate ions , all of which are acidic in nature. This lowers the pH of the ocean making the waters more acidic. Therefore the acidity of oceans is largely dependent on carbon compounds and the amount of Carbon dioxide.
The reaction of Carbon dioxide with water to give carbonic acid :
CO2 + H2O → H2CO3
(To know more about ocean acidification : brainly.com/question/7604502 )
Answer:
Explanation:
It is easier if you convert the kelvin temperature into Celsius degrees:
- ºC = T - 273.15 = 150 - 273.15 = -123.15ºC
Now, you know that that is a very cold temperature. Thus, may be the oxygen is not gas any more but it changed to liquid . . . or solid?
You must search for the boiling point and melting (freezing) point of oxygen in tables or the internet. At standard pressure (about 1 atm) they are:
- Melting point: −218.79 °C,
- Boiling point: −182.962 °C
That means that:
- below -218.79ºC oxygen is solid (not our case).
- between -218.79ºC and -182.962ºC oxygen is liquid (not our case)
- over -182.962ºC oxygen is a gas. This is our case, because -123.15ºC is a higher temperature than -182.962ºC.
Hence, <em>the state of matter of oxygen at 150K</em>, and standard pressure, is gas.
The three hypotheses that explain why being born in the United States
leads to a higher chance of developing allergies include the following:
- The weather patterns in the United States bring more allergens compared to other countries.
- Other factors which might influence why there are more children with allergies in the United States include climate, obesity, and the typical western diet with high amounts of processed foods.
- The hygiene hypothesis claims that children in the United States are not exposed to enough germs in their infancy and childhood to develop their immune system‘s properly.
Allergies are caused by a host of factors such as :
These factors is the reason why the chosen hypotheses are the most
appropriate.
Read more about Hypotheses here brainly.com/question/10854125