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AleksAgata [21]
3 years ago
13

Some people think hydropower should be used to supply ali of the electricity for the United States. Which of the following state

ments describes a flaw in this plan?

Chemistry
2 answers:
iragen [17]3 years ago
8 0
C. Hydropower would need dams to be built, and this will prevent fishes from going upstream.
Hoochie [10]3 years ago
6 0

The answer is: C. Hydropower can harm native aquatic population.

Hydropower facilities can have a major impact on aquatic ecosystems.

Hydroelectric power have hydroelectric dams and the reservoir.

Hydroelectric dams and the reservoir obstruct fish migration and affect their populations.

Reservoirs have higher than normal amounts of sediments and nutrients, which can lead to excess of algae.

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What mass of CO2 would be needed to weigh out to make 10.5 moles of carbon dioxide? (round answer to nearest tenth)
melamori03 [73]

The mass of carbon dioxide that would be needed to weigh is 462 grams.

Given:

10.5 moles of carbon dioxide.

The periodic table

To find:

The mass of carbon dioxide would be needed to weigh out to make 10.5 moles of carbon dioxide.

Solution:

Mass of carbon dioxide needed = m

Moles of carbon dioxide needed = 10.5 mol

The molar mass of carbon dioxide = M

The atomic mass of carbon atom = 12.011 g/mol

The atomic mass of oxygen atom = 15.999 g/mol

M = 1\times 12.011 g/mol+2\times 15.999 g/mol\\\\=44.009 g/mol

The moles of carbon dioxide will be given as:

10.5 mol=\frac{m}{44.009 g/mol}\\\\m=10.5 mol\times 44.009 g/mol=462.0945 g\approx 462 g

The mass of carbon dioxide that would be needed to weigh is 462 grams.

Learn more about the moles of substance here:

brainly.com/question/2293005?referrer=searchResults

brainly.com/question/1445383?referrer=searchResults

7 0
3 years ago
The gravitational strength at te poles is greater than the gravitational strength at the equator. what will happen to an object
amid [387]

Answer:

4

Explanation:

The weight will decrease.

Because the value of acceleration due to gravity is decreasing thus the weight of object will also decrease.

4 0
3 years ago
What is the easiest way to explain molecular compounds and covalent bonds also adding information about valance electrons?
wlad13 [49]

Answer:

Molecular compounds consist of two or more nonmetals. The nonmetals that make up a molecular compound are held together by covalent/molecular bonds. Covalent bonds is known as the "sharing" of valence electrons between two or more chemical species. Valence electrons are shared so that the atoms of the compound can become stable, much like how ionic bonds transfer valence electrons between atoms to achieve stability.

5 0
3 years ago
How can water deposits soil, sediments, and rocks
Svetllana [295]
Hey just say that the water carrys sediment to different places by it current if i put sand in a stream it will go down it 

8 0
3 years ago
Compare and contrast the concepts of average mass and relative mass​
Sphinxa [80]

Answer:

Relative and average atomic mass both describe properties of an element related to its different isotopes. However, relative atomic mass is a standardized number that's assumed to be correct under most circumstances, while average atomic mass is only true for a specific sample.

Explanation:

6 0
4 years ago
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