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3 years ago

4. If the earth were to heat up by 3 degrees, approximately how much would the sea level rise?

Chemistry

1 answer:

Ksju [112]3 years ago

8 0

The sea level would rise by some 50 meters.

Explanation:

If the earth's temperature increases by 3 degrees the north and south pole would experience the ice melt at high speed.

The life will get difficult on the plains.

The extinction of some species will happen.

The sea level would rise by 50 meters. The increased sea level will cause depletion of habitat from plants and animals.

The floods will occur, land erosion, soil for agriculture land will get contaminated with the salt.

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What is the ionization charge for the elements found in Group II?

ser-zykov [4K]

Answer: a + 2

Explanation: Alkali Earths or Group II has an ionization charge of a + 2. Alkali Metals have a ionization a + 1. Halogens or cold elements have a ionization of a +3.

5 0

2 years ago

Consider the reaction below. 2K+Br2------>2K+ +2Br-

sergeinik [125]

Answer: only Br2.

Justification.

In a chemical reaction the element that gains electrons experiments a reduction in its oxidation state, that is why it is said that it is reduced.

So, to know what element is being reduced you need to calculate the oxidation states of the elements involved.

Here I indicate the oxidation states of each element if the reaction putting them inside parenthesis:

Reactants side          Products side

K (0) K (1+)

Br (0)                          Br(1-)

So, K lost one electron, increasing its oxidation statefrom 0 to 1+, meaning that it is being oxidized.

And, each atom of Br gained one electron, reducing its oxidation state from 0 to 1-, meaning it is being reduced.

Therefore, the answer is that Br2 is the substance being reduced.

3 0

3 years ago

Read 2 more answers

There are many methods used to obtain energy for use in our our daily lives. Some of these methods have possible environmental c

Len [333]

(A)wind and solar should be the answer

8 0

3 years ago

What type of bond would be formed between hypothetical elements X and Y in the the compound XY based on their electronegativity

Mnenie [13.5K]

The bond is polar covalent because the difference in electronegativity is greater than 0.4, but less than 1.7.

Electronegativity refers to the ability of an atom in a compound to attract the electrons of the bond towards itself. It is a periodic trend that increases across the period but decreases down the group.

The electronegativity difference between the two atoms as shown in the question is 1.55. This means that the bond is polar covalent because the difference in electronegativity is greater than 0.4, but less than 1.7.

Learn more: brainly.com/question/2510654

5 0

2 years ago

Br2(l) + 2Nal(aq) — 12(s) + 2NaBr(aq)

Ganezh [65]

Iodine (I) is oxidized, and bromine (Br) is reduced. The correct option is the last option - lodine (I) is oxidized, and bromine (Br) is reduced.

To determine which elements are oxidized and reduced,

First, we will define the terms Oxidation and Reduction

<em>Oxidation </em>is simply defined as the loss of electrons. It can also be defined as increase in oxidation number.

<em>Reduction </em>is defined as the gain of electrons. It can also be defined as decrease in oxidation number.

The given chemical equation is

Br₂(l) + 2NaI(aq) → I₂(s) + 2NaBr(aq)

Oxidation number of Bromine decreased from 0 to -1.

Therefore, Bromine is reduced.

Oxidation number of Iodine increased from -1 to 0.

Therefore, Iodine is oxidized.

Oxidation number of sodium did not change.

Therefore, Sodium is neither oxidized nor reduced.

Hence, Iodine (I) is oxidized, and bromine (Br) is reduced. The correct option is the last option - lodine (I) is oxidized, and bromine (Br) is reduced.

Learn more here: brainly.com/question/12913997

3 0

2 years ago