karkinabin280 karkinabin280

09-11-2019
Chemistry

contestada

why alkali metal impart characteristic colours when introduced to flame

Respuesta :

amiyadimar92 amiyadimar92

09-11-2019

Alkali metals impart characteristic colours to the flame due to low ionisation enthalpy, when an alkali metal or its salt is heated in a flame, the valence electrons are excited to higher energy level.

Answer Link

Otras preguntas

Karen Price is 55 years old, divorced, and has worked at her current job for five years. She is interested in looking at her credit report. Which of the followi

List two observations that could be evidence of a chemical reaction.

Nearly all plant cells and many bacteria are surrounded by a cell wall. However, the roles these walls play in cell division differ dramatically. In plants, the

How can it be said that the blood of Jesus is like the blood of the Passover lambs?

A major component of gasoline is octane (C8H18). When liquid octane is burned in air it reacts with oxygen gas to produce carbon dioxide gas and water vapor. Ca

What is current density??

- Theravada Buddhism teaches that the Buddha is a god

Evelyn dropped a tiny spot of ketchup on her pants during lunch. Even though her teacher was able to completely remove the spot, Evelyn is crying hysterically a

Fred is allergic to the cat. He sneezes whenever his sister's cat gets near him. Fred's sister puts a collar with a bell on the cat, so Fred will know when it i

Which of the following statements describes a way Classical Greek and Roman sculpture inspired Renaissance sculptors such as Michelangelo? They avoided the stud