The threat of another hurricane is a problem for New York City. What have people

Which type of element is not likely to react chemically with other elements to form a compound?

blsea [12.9K]

Answer:

The noble gases with complete outermost shell electrons.

Explanation:

Noble gases or inert gases do not react chemically with other elements because they have a complete configuration of their electronic shells. What drives chemical reaction is simply the exchange of electrons between two or more atoms. It can be a loss, a gain or simple sharing of electrons in order to achieve a complete configuration just like those of noble gases.

5 0

2 years ago

If the dimensions of a cube-shaped cell with a volume of 1 pm were to

melamori03 [73]

Answer:

B

Explanation:

Assuming the units are all supposed to be the same

A cube shaped cell with a 1 um³ volume would have a dimensions of 1 x 1 x 1 (because volume = length x width x height and 1 x 1 x 1 =1)

If we double the dimensions, we have a cube with the dimensions 2 x 2 x 2.

The surface area of each face of the cube is the length x width, so 2 x 2. This means the surface area of each face of the cube is 4 um².

There are 6 faces of a cube, so the total surface area is 6 x 4 um² = 24 um².

5 0

2 years ago

A drought hits the habitat of a semi-aquatic bird population. All ponds dry up, and fish populations decline. There are two grou

alexandr1967 [171]

Answer:

The population of the long-legged birds decreases.

Explanation:

The population of the short-legged birds increases whereas the population of long-legged birds decreases due to availability of food in that environment. The long-legged birds feed on fish whose population decreases due to drought conditions so the population of long-legged birds also decreases while on the other hand, the population of short-legged birds increases or remain the same because they feed on the insects and the insects are available in large amount and less affected by the drought conditions.

4 0

2 years ago

Give the hybridization for the br in bro4⁻.

elixir [45]

The hybridization for the Br in BrO4⁻ is $sp^{3}$ . So, the correct option is (e).

In chemistry, the idea of combining atomic orbitals to create new hybrid orbitals (with different energies, shapes, etc., than the component atomic orbitals) is known as orbital hybridisation (or hybridization). These new hybrid orbitals are suitable for the pairing of electrons to form chemical bonds in valence bond theory.

Because more directional hybridised orbitals result in higher overlap when creating bonds, stronger bonds are formed, which favours the hybridization of orbitals. When hybridization takes place, this leads to more stable molecules.

One s orbital and three p orbitals combine to form four $sp^{3}$ orbitals, each of which has a 25% s character and a 75% p character. This process is known as $sp^{3}$ hybridization. Anytime an atom is surrounded by four groups of electrons, this kind of hybridization is necessary.

Learn more about hybridization here:

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8 0

1 year ago

Commercial electrolysis is performed on both molten NaCl and aqueous NaCl solutions. Identify the anode product, cathode product

olasank [31]

The anode product is Cl2 (g) , the cathode product is Na (l) metal , the species that is getting reduced is Na+ (l) and the species that is getting oxidised is Cl- (l)

<h3>What is Electrolysis ?</h3>

Electrolysis is a process that involves the movement of ions to the oppositely charged cathodes.

For example: electrolysis of NaCl.

Electrolysis of NaCl : The commercial electrolysis of NaCl is performed on both molten NaCl and aqueous NaCl solutions.

<h3>What is Electrolysis of molten NaCl ?</h3>

1. When NaCl is heated at very high temperature ≈1070 K, it gets separated into ionised forms i.e. sodium ion and chloride ion.

The following reaction takes place:

NaCl (l) → Na+ (l) + Cl-(l)

2. During electrolysis the following reactions takes place at cathode and anode respectively:

at anode: 2Cl- (l) → Cl2(g) + 2e-

at cathode: 2Na+ (l) + e- → Na(l)

Overall reaction is :

2Na+(l) + 2Cl-(l) → 2Na(l) + Cl2 (g)

So, from the above reactions the following conclusions can be drawn :-

The product obtained at anode is Cl2 (g) and the product obtained at cathode is Na(l) metal. The species that is getting oxidised is Cl- (l) and the species that is getting reduced is Na+ (l) metal.

Learn more about the Electrolysis here: brainly.com/question/24063038

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5 0

1 year ago