Light of a certain energy shines on a metal and causes electrons to be emitted.

Based on the research of Albert Einstein, what change would most likely result in stopping the emission of electrons from this metal?

What is the evidence of a chemical reaction when the fireworks go off

2. The particles in the oxygen gas animation show many different kinds of motions. Identify three different kinds of motions/interactions you observe. Which motions create pressure on the walls of the container

Write a thermodynamic equation for a) the first ionisation energy for fluorine b) the second ionisation energy of magnesium

Nitrogen gas is used in fuel tank of aeroplane

If 15.0 g CO2 (mm = 44.01 g/mol) has a volume of 0.30L at 27oC, what is the pressure in atm? Group of answer choices 27.97 atm 1230.9 atm 2.52 atm 325.0 atm

The compound HCI is an example of a (n) A. covalent compound B. ionic compound C. element D. salt

Is the degree of highness or lowness of sound

A student has two substances at a lab table. One substance is iron pyrite (fool's gold) and the other is real gold. After placing a 20.0-gram sample of iron pyrite into 40.0 mL of water in a graduated cylinder, it displaces 4.0 mL of water.

Hydrolysis is an example of which type of reaction?

Which of the following best represents a neutralization reaction