When magnesium ribbon is ignited, it gives off a white fume of magnesium oxide. what is this type of reaction? synthesis reaction double displacement reaction decomposition reaction single displacement reaction

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?

What is the empirical formula of a compound that is 50.7% antimony and 49.3% selenium ?