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faust18 [17]
3 years ago
9

If a resource is nonrenewable, it

Chemistry
1 answer:
Goshia [24]3 years ago
7 0

Answer:

Can't be used again

Explanation:

...................................

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Which impact is the greatest negative of a new hydroelectric dam?.
3241004551 [841]

The negative impact of the hydroelectric dam is local drought and massive flood by dam breakage.

The hydroelectric dam is the local water storage body that is used to convert the energy of the water to electrical energy. The plants are a huge source of electricity.

<h3>What is the dam's negative impact?</h3>

The dam is prepared in order to collect the local water in the bodies for the production of electricity. The collection of water required a larger force and pressure-bearing ability, thus dams are constructed with high-quality material.

The dams provide hydroelectricity, but the collection of water has been caused by the local drought conditions in the area. The dam breakage leads to massive floods as well.

Learn more about hydroelectric dam, here:

brainly.com/question/25761749

8 0
2 years ago
The black, granular material that fills a dry cell in a common flashlight (between the carbon rod and the zinc shell) is mangane
mestny [16]

Answer: c. +4

Explanation:

For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.  

Mn:25:1s^22s^22p^63s^23p^64s^23d^{5}

Mn^{4+}:21:1s^22s^22p^63s^23p^63d^1

O:8:1s^22s^22p^4

O^{2-}:10:1s^22s^22p^6

Here manganese is having an oxidation state of +4 called as  cation and oxygen forms an anion with oxidation state of -2. Thus they combine and their oxidation states are exchanged to give Mn_2O_4 which written in simplest whole number ratios to give neutral MnO_2

7 0
3 years ago
Which of the following work mostly severaly affect a human population
Arada [10]
Picture isn't showing
6 0
3 years ago
1. Gases are made up of molecules which are relatively far apart.
bulgar [2K]
The answer is A) 1...
6 0
3 years ago
How many electrons does an element have if its atomic number is 20
olga55 [171]

Answer:

20 electrons

A neutral atom with atomic number 20 will have 20 electrons.

The atomic number is, by definiton, the number of protons in an atom's nucleus but for a neutral atom it's also equal to the number of electrons. Each element has a different, unique number of protons that determines its identity.

Explanation:

6 0
2 years ago
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