Which is a characteristic of a strong base?

2 answers:

8 0

A characteristic of strong base is that
<span>It removes H+ ions from solution.
</span>
A strong base can dissociate into ions that can react with an acid resulting to the removal of H+ ions from a solution. A weak base only dissociates partially which removes less H+ ions in a solution.

Ahat [919]4 years ago

6 0

Answer is: It removes H+ ions from solution.

For example sodium hydroxide is strong base.

Chemical dissociation of sodium hydroxide in water:

NaOH(aq) → Na⁺(aq) + OH⁻(aq).

Strong bases turn colorless phenolphthalein pink, turn red litmus paper blue and release OH⁻ ions into a solution.

Strong base removes H+ ions from solution:

NaOH(aq) + HCl(aq) → NaCl(aq) + H₂O(l).

Net ionic reaction: OH⁻(aq) + H⁺(aq) → H₂O(l).

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Which element would you expect to be more metallic?<br> (a) S or Cl (b) In or Al (c) As or Br

Natalija [7]

Explanation:

When we move across a period from left to right then there will occur an increase in electronegativity and also there will occur an increase in non-metallic character of the elements.

As sulfur (S) is a group 16 element and chlorine (Cl) is a group 17 element. Hence, sulfur (S) is more metallic in nature than chlorine.

This means that chlorine (S) is less metallic than chlorine (Cl).

Both indium (I) and aluminium (Al) are group 13 elements. And, when we move down a group then there occur an increase in non-metallic character of the elements. As indium belongs to group 13 and period 5 whereas aluminium belongs to group 13 and period 3.

Therefore, aluminium (Al) is more metallic than indium (In).

Arsenic (Ar) is a group 15 element and bromine (Br) is a group 17 element. Therefore, arsenic is more metallic than bromine.

4 0

4 years ago

_______________ is when a compound containing carbon and hydrogen (and sometimes oxygen) combines with oxygen gas to produce car

kotykmax [81]

Answer:

C. Combustion

Explanation:

Combustion- an organic compound containing carbon, hydrogen and sometimes oxygen reacts with oxygen gas to form carbon dioxide and water.

4 0

4 years ago