Can someone explain to me about Phlogiston and what Antoine Lavoisier proposed?

While transferring the weighed salt to the test tube in the experiment, a student accidentally spilled some of their sample.

What is the vapor pressure above a solution prepared by dissolving 0.500 mol of a non-volatile solute in 275 g of hexane (86.18 g/mol) at 49.6°C? P°hexane = 400.0 torr at 49.6°C.

In the manufacture of ammonia, nitrogen, and hydrogen gases react over an iron/potassium oxide catalyst to give ammonia. hydrogen is the expensive reagent as nitrogen can be obtained from the air.

The term accuracy best refers to which of following

The densities of crystalline co2 and nh3 at 160 k are 1.56 and 0.84 g/cm3, respectively. calculate their molar volumes.

How long will it take for the concentration of xy to decrease to 12.5% of its initial concentration when the initial concentration is 0.100?

Which has a higher energy level 6d or 5s?

How far is the Earth for the moon?

It is thought that organelles of eukaryotic organisms, such as mitochondria and chloroplasts (in plant cells) came from

How does temperature affect molecules