Answer:
The part of the earth’s surface where, at temperatures below 32°F (0°C), the water is frozen solid. Even a small pond while frozen over during the winter is part of the cryosphere, but cryosphere refers more often to large regions covered in snow and ice for much or all of the year, as the ice sheets of Antarctica and Greenland, glaciers, icebergs, and expanses of permafrost, all of which are especially sensitive to global shifts in climate:
Explanation:
When
Carboxylic Acid is treated with
Alcohols in the presence of
acid as a catalyst it produces corresponding
Esters. This reaction is called as
Esterification.
Also, this reaction is a reversible reaction and the ester formed can also hydrolyze to produce Carboxylic acid and Alcohol. This reverse reaction is called as
transesterification.
The formation of
Ethyl Acetate from
Acetic Acid and
Ethanol in the presence of acid is shown below,
Answer:
The three compounds are different compounds
Explanation:
The mass of Nitrogen that combines with 1 gram of Oxygen in Compound A = 1.750 g
The mass of Nitrogen that combines with 1 gram of Oxygen in Compound B = 0.8750 g
The mass of Nitrogen that combines with 1 gram of Oxygen in Compound C = 0.4375 g
According to the law of multiple proportions, when atoms of two different elements react to form compounds, the masses of one of the elements that combines with a fixed mass of the other element are in small whole number ratios.
The ratio of the masses are;
Mass of Nitrogen in Compound B/(Mass of Nitrogen in Compound C = 0.8750/0.4375 = 2
Mass of Nitrogen in Compound A/(Mass of Nitrogen in Compound C = 1.750/0.4375= 4
Mass of Nitrogen in Compound A/(Mass of Nitrogen in Compound B = 1.750/0.8750= 2
Given that the masses of Nitrogen in the three compounds are in small whole number ratios, the three compounds, Compound A, Compound B, and Compound C are different compounds.
Answer:
4.6 x 10⁻⁶
Explanation:
In scientific notation, the number should be written in between 1 - 10 and multiplied by 10 raised to a power.
In this case, the decimal place should be placed in-between the 4 and the 6. To do this, you must move the decimal place 6 digits to the right. When you move the decimal place to the right, the 10 should be raised to a negative number.
As such, 0.0000046 in scientific notation is 4.6 x 10⁻⁶.
