All categories

3 years ago

Name three important qualities of water.

Chemistry

1 answer:

Paraphin [41]3 years ago

3 0

Answer:

Water (H

2O) is a polar inorganic compound that is at room temperature a tasteless and odorless liquid, which is nearly colorless apart from an inherent hint of blue. It is by far the most studied chemical compound[18] and is described as the "universal solvent"[19] and the "solvent of life."[20] It is the most abundant substance on the surface of Earth[21] and the only common substance to exist as a solid, liquid, and gas on Earth's surface.[22] It is also the third most abundant molecule in the universe (behind molecular hydrogen and carbon monoxide).[21]

You might be interested in

Find the pH of the following solution: 6.00 mL of 3.00 M HNO3 diluted to a volume of 18.0 liters with water

kupik [55]

The first thing to do is to calculate the new concentration of the solution after dilution. We do as follows:

M1V1 = M2V2
(3.0 M).006 L = M2 (18 L)
M2 = 0.001 M HNO3

When in solution it dissociated into ions as follows:

HNO3 = H+ + NO3-

[H+] = 0.001 M HNO3 ( 1 mol H+ / 1 mol HNO3 ) = 0.001 M H+

pH = -log[H+] = -log 0.001 = 3

8 0

4 years ago

What compound requires the most energy to melt

FinnZ [79.3K]

Answer: Tungsten. This requires a lot of energy. Molecules are held together by covalent bonds, which are strong.

7 0

3 years ago

Dinitrogentetraoxide partially decomposes into nitrogen dioxide. A 1.00-L flask is charged with 0.0400 mol of N2O4. At equilibri

artcher [175]

Answer:

Keq=0.866

Explanation:

Hello,

In this case, the undergone chemical reaction is:

$N_2O_42NO_2$

In such a way, since 0.0055 mol of N₂O₄ remains in the flask, one infers that the reacted amount ( $x$ ) was:

$x=0.04mol-0.0055mol=0.0345mol$

In addition, the produced amount of NO₂ is:

$2*0.0345mol=0.069mol$

Finally, considering the flask's volume, the equilibrium constant is then computed as follows:

$Keq=\frac{(2*0.0345M)^2}{0.0055M}=0.866$

Best regards.

6 0

3 years ago

Match the mineral categories to their best descriptions.a. sulfide mineralsminerals that have a sulfur atom surrounded by four o

alexandr1967 [171]

Following is the match the mineral categories to their best descriptions:

a) sulfide mineral: Contain sulfur plus a metallic element
b) sulfate mineral: Compounds that have a sulfur atom surrounded by four oxygen atoms
c) halide minerals: Contain elements like fluorine, bromine, iodine, or chlorine combined with metals. Stable salt is an example of this type of mineral
d) carbonate mineral: Compounds made up of a carbon atom that is bordered by three oxygen atoms.

7 0

3 years ago

What happens to iron oxide during decomposition

elena55 [62]

Answer:

it gets reduced from a +3 oxidation to a 0.

Explanation:

the decomposition of iron oxide to elemenTal can be represented by the following equation: iron oxide (Fe203), the oxidation state of iron is +3 while that of oxygen is -2. therefore, the above reaction is a redox (reduction oxidation reaction)

4 0

3 years ago