All categories

3 years ago

write the symbols for the ions that form when potassium and iodine react to form the ionic compound potassium iodide.

Chemistry

2 answers:

irakobra [83]3 years ago

5 0

Answer:

$I^{-}$

$K^{+}$

Explanation:

As iodine has a higher electronegativity value and 7 valence electrons, it takes the valence electron of potassium to complete 8 electrons in its valence shell thus forming the anion $I^{-}$ and, as consequence of losing one electron, the K atoms forms the cation $K^{+}$

The formula of potassium iodide is KI

Bingel [31]3 years ago

3 0

I believe it isK+ + I-=KI

You might be interested in

Oftentimes solubility of a compound limits the concentration of the solution that can be prepared. Use the solubility data given

bulgar [2K]

Answer:

NaNO3 (solubility = 89.0 g/100 g H2O)

Explanation:

The solubility of a specie is the amount of solute that will dissolve in one litre of the solvent. Solubility is usually expressed in units of molarity.

Now let us calculate the molarity of the NaNO3 (solubility = 89.0 g/100 g H2O)

Molar mass of NaNO3= 23+14+3(16)= 85gmol-1

Mass of solute=89.0g

Amount of solute= mass of NaNO3/molar mass of NaNO3

Amount of solute= 89.0g/85.0 gmol-1

= 1.0moles of NaNO3

Note that 100g of water=100cm^3 of water.

If 1.0 moles of NaNO3 dissolve in 100cm^3 or water therefore,

x moles of NaNO3 will dissolve in 1000cm^3 of water

x= 1.0 × 1000/ 100

x= 10.0 moles of NaNO3

3 0

4 years ago

Explain what happens to the particles in a substance during a physical change. plllzzzzz hurry!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Reptile [31]

Answer:

When a physical change occurs, the arrangement of particles within the substance may change, but the atoms in the molecules remain bonded together.

Explanation:

Srry didn't see this till now, hope u got it right :)

4 0

3 years ago

K3PO4+AgNO3--> ??? Ba(HCO3)2+Ba(OH2)-->

GuDViN [60]

Explanation:

A balanced chemical equation is one where all the individual atoms are equal on both sides of the reaction. It follows the law of conservation of mass.

For 1:

When potassium phosphate reacts with silver nitrate, it leads to the formation of silver phosphate and potassium nitrate.

The balanced chemical equation follows:

$3AgNO_3+K_3PO_4\rightarrow Ag_3PO_4+3KNO_3$

For 2:

When barium bicarbonate reacts with calcium hydroxide, it leads to the formation of barium carbonate, calcium carbonate and water

The balanced chemical equation follows:

$Ba(HCO_3)_2+Ca(OH)_2\rightarrow BaCO_3+CaCO_3+2H_2O$

5 0

3 years ago

What can we tell from the column that an element is in?

Paul [167]

Answer:

The number of electrons in the outer energy level

Explanation:

6 0

4 years ago

Hi people just saying if you think your life is hard just remember other people have it way worse then you

Serhud [2]

i mean my mom takes all my electronics at night.

6 0

3 years ago