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Zanzabum
2 years ago
6

Compare the properties of elements in groups 17 and group 18. Make sure to cover the following points:

Chemistry
2 answers:
My name is Ann [436]2 years ago
7 0
The answer for this question is b
murzikaleks [220]2 years ago
5 0

Answer:

The answer.

Explanation:

Group 17 consists of Halogens, and group 18 consists of Noble Gases.

Group 17 are very high electronegativities. They have seven valence electrons. They are highly reactive, especially with alkali metals and alkaline earth.  

In group 18 their elements are the most stable due to having the maximum number of valence electrons their outer shell can hold. Therefore, they rarely react with other elements since they are already stable.

Nobel gases are placed there because they are extremely unreactive.

Halogen elements are placed there because they have seven valence electrons, they only require one additional electron to form a full octet.

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Please help me I will give a brainleist​
Korvikt [17]
When the dew point temperature and air temperature are equal, the air is said to be saturated. Dew point temperature is NEVER GREATER than the air temperature. Therefore, if the air cools, moisture must be removed from the air and this is accomplished through condensation.
7 0
3 years ago
hich of the following statements is not true for an exothermic reaction? Question 2 options: The products have a higher heat con
yKpoI14uk [10]

Answer:

An exothermic process releases heat, causing the temperature of the immediate surroundings to rise. An endothermic process absorbs heat and cools the surroundings.

3 0
3 years ago
As the energy of the molecules increases, the motion of the molecules _______.
Alexus [3.1K]

Answer:

the motion of molecules increases

6 0
2 years ago
(V) A solution of hydrogen chloride is an electrolyte but a solution of
tiny-mole [99]

Answer:

When hydrogen reacts with chlorine, hydrogen chloride is formed. Hydrogen chloride is a gas, and has the formula HCl(g).

When hydrogen chloride dissolves in water, hydrochloric acid is formed. This has the same formula, but you can tell the difference because of the state symbol (aq), which stands for ‘aqueous’. The formula is written as HCl(aq).

Hydrogen chloride is made from molecules. The hydrogen atom and the chlorine atom are joined by a covalent bond. When hydrogen chloride forms hydrochloric acid, the molecules split into ions.

HCl(aq) → H+(aq) + Cl-(aq)

The H+ ions make this aqueous solution acidic. The solution also conducts electricity because it contains ions that are free to move.

However, when hydrogen chloride gas dissolves in a solvent called methylbenzene, the molecules do not split up. A solution of HCl in methylbenzene does not contain hydrogen ions, so it is not acidic. The solution also has a low electrical conductivity.

4 0
3 years ago
Which solid from the data table would float on water?
puteri [66]

Answer:

Ther answerr is A only solid A.

Explanation:

The density of water is 1 g/cm3 so anything above that will sink,  but as you can see solid A dosnt ev en reach one./ so It will float on water. the other two are over 1 g/cm3.

<h2>If this answer helped mark it brainliest. :)</h2>

5 0
3 years ago
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