What happens when KCl is dissolved in water

How is the light emitted by an atom related to its electron configuration? I've been struggling to figure out how exactly to answer this.

Why is photosynthesis an endothermic reaction?

Im the only noble gas with 2 electrons

Carbon-14 forms nitrogen-14 by a. alpha decay. b. beta decay. c. gamma decay. d. none of the above

Two different atoms have six protons each and the same mass. However, one has a negative charge while the other has a positive charge. Describe what each atomic structure could be, listing the possible number and location of all subatomic particles.

Identify the combustion reaction. c4h12 + 7o2 ⟶ 6h2o + 4co2 2h2 + o2 ⟶ 2h2o al2s3 ⟶ 2al + 3s cl2 + 2kbr ⟶ 2kcl + br2

A water molecule consists of an oxygen atom and two hydrogen atoms covalently bonded in a bent shape. Oxygen however, attracts the shared electrons more strongly than the hydrogen atoms. This structure leads to which important property of water? a.

How much ko2 is needed to react with 75.0 l of carbon dioxide at - 25˚c and 215 kpa?

Is limestone a mixture or a pure substance

What is the number of electrons in the outermost energy level of an oxygen atom