Answer:
E. potassium (K) and bromine (Br)
Explanation:
An ionic bond is formed between compounds with a large electronegativity difference between them. It is usually between a metal and non-metal.
- Potassium is a true metal found in group 1 on the periodic table.
- Bromine is a highly electronegative non-metal which is a halogen.
- Potassium will lose one of its electrons which will be gained by the Bromine.
- The electrostatic attraction between the two species will cause the ionic bond to form.
- The ability of one specie willing to lose electron and the other gaining, is the main bed rock of ionic bonding.
Answer:
Chemical properties are properties that can be measured or observed only when matter undergoes a change to become an entirely different kind of matter. They include reactivity, flammability, and the ability to rust. Reactivity is the ability of matter to react chemically with other substances.
Explanation:
My own knowledge
Hope it helps
Put a thanks
Thanks you
Answer:
3.18x10⁻³
Explanation:
The equilibrium of a weak acid can be written as:
And Ka can be expressed as:
- Ka=
<u><em>Keep in mind that [H⁺] = [A⁻]</em></u>.
We can<u> calculate [H⁺] from the pH</u>:
- [H⁺]==0.0158
Now we <u>compute the calculated [H⁺]</u> (and [A⁻]) <u>with the [HA] given by the problem</u>:
Ka = = 3.18x10⁻³
The species that represents an ion is B³+ (option A).
<h3>What is an ion?</h3>
An ion is an atom or group of atoms bearing an electrical charge, such as the sodium and chlorine atoms in a salt solution.
Simply put, an ion is said to be an electrically charged atom. This refers to the difference in the number of protons and electrons in the atom of an element.
According to this question, the species with an electrical charge is B³+, hence, it represents an ion.
Learn more about ion at: brainly.com/question/14982375
#SPJ1