Answer: Broad, flat teeth for grinding.
Explanation:
Bison are large herbivorous mammals. These belong to the family of Bovidae. They create habitat on the Great Plains and grassland for many different species. Bison are called a keystone species. As the bison forage they cause aeration of soil. This promotes plant growth. They have broad, and flat teeth which help them to grind food. These mammals appear in herd which helps in maintaining a balanced ecosystem.
Answer:
This structure shows that, "<span>Water is polar, which means it has an uneven distribution of charge making it a good solvent of other polar molecules".
Explanation:
When the Electronegativity difference between two atoms joint through covalent bond is greater than 0.4 and less than 1.7, then the bond is said to be polar bond, and molecule containing polar bonds with asymmetry are said to be polar molecules. In water the Electronegativity difference between Oxygen atom and Hydrogen atom is calculated as,
E.N of Oxygen = 3.44
E.N of Hydrogen = 2.20
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Difference 1.24
Hence, the bond is Polar covalent bond.
Secondly, as we know that Like dissolves Like, so water being polar in nature will interact with polar compounds. And polar compounds will tend to dissolve in water. So, water is a good solvent for polar compounds.</span>
<u>Answer:</u> The solubility of oxygen at 682 torr is
<u>Explanation:</u>
To calculate the molar solubility, we use the equation given by Henry's law, which is:
Or,
where,
are the initial concentration and partial pressure of oxygen gas
are the final concentration and partial pressure of oxygen gas
We are given:
Conversion factor used: 1 atm = 760 torr
Putting values in above equation, we get:
Hence, the solubility of oxygen gas at 628 torr is