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3 years ago

Characteristics of the water at the mountain source: Speed: Temperature Oxygen Level Nutrient Level

Chemistry

1 answer:

aksik [14]3 years ago

6 0

Describe the characteristics of the water at the mountain source:

Answer:

The answer is below

Explanation:

Speed: there will be faster speed due to the steep slope movement of water from the mountain.

Temperature: there will be lower temperatures as a result of the faster speed of water movement which reduces the influence of solar radiation on it.

Oxygen: the oxygen content is higher due to little or no residue particles present in it.

Nutrient Level: this is considered somewhat low as a result of the water coldness and speed which does not support the nutrition base to form.

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The density of pure gold is 19.3g/cm3. What is the volume of 1.00 g of pure gold?

soldier1979 [14.2K]

Answer: Volume of 1g of pure gold $v=0.05181 \mathrm{cm}^{3}$

Given;

Density of a pure gold=19.3 $g / c m^{3}$

Mass of a pure gold =1g

To find:

Volume of 1g of pure gold

Solution:

According to the formula,

Density= Mass/Volume

$\rho=m / v$

Where $\rho$ =density of pure gold

m=mass of pure gold

v=volume of pure gold

From the above equation volume can be calculated as

$v=m / \rho$

Substitute the values of mass and density value in the above equation

$v=1 / 19.3$

$v=0.05181 \mathrm{cm}^{3}$

Result:

Thus the volume of 1g of pure gold is $v=0.05181 \mathrm{cm}^{3}$

8 0

3 years ago

Please help I’m torn between A and B. I’ve asked many and people say A, but I asked my science teacher and she said B. And also

astraxan [27]

If your science teacher says B, it’s probably because water has a negative and positive end, heat is just a form of energy, as other atoms can’t leave (they’re attracted to the ends) they are being insulated; but notice that ice will melt into gas (where atoms have tons of space) for other atoms to escape. Hence ice and gas aren’t ideal. (Air is a gas here.)
It’s not a 100% but hopefully it helps with some kind of analogy.

4 0

4 years ago

Elephants are valued by some people because their tusks are made of ivory. Although it is illegal, people kill

Naddik [55]

Answer:

Poaching.

Explanation:

The descriptions for each of the terms you listed:

poaching: illegal hunting of wild animals
habitat destruction: the process in which a habitat becomes unsuitable for supporting life, often by human activity
pollution: the introduction of hazardous or harmful waste into the environment
nonnative species: a species introduced to a new habitat, often by human activity, that thrives unusually well due to having no natural predators in its new habitat.

Hunting elephants (an illegal activity in many countries) for their ivory is considered poaching.

4 0

3 years ago

Read 2 more answers

Add coefficients to the reaction summary to show the net results of glycolysis. glucose+a ADP+b Pi+c NAD+⟶x pyruvate+y ATP+z NAD

Katyanochek1 [597]

Answer:

See figure 1

Explanation:

For this question, we can start with the structure of pyruvic acid. In this molecule, we have two functional groups, the ketone group, and a carboxylic acid group.

In the acid group, we have an acidic hydrogen. That is, this hydrogen can leave the molecule to produce a hydronium ion ( $H^+$ ).

Now, to know what is the pH at which this hydrogen leaves the molecule we must look for the pKa value. Which for the case of this molecule is 2.45

If there is a pH value greater than 2.45, the molecule will lose hydrogen. In this case, we will have a value above 2.45 (7.4), which is why the conjugated acid of pyruvic acid will be produced, which is pyruvate.

Therefore, in the structure, we will have a negative charge on the acid group.

See figure 1

I hope it helps!

3 0

4 years ago

Can you please help. I don't know how to do it.

Rainbow [258]

The area used to be covered by an ocean

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3 years ago