krypton and xenon
Toothpaste is a mixture.
Neon glows reddish-orange in a vacuum discharge tube
Gases have no definite volume or shape. The air that you breathe, the helium in a balloon, and the neon inside the tube in a neon light are gases.
When neon and nitrogen are mixed, they do not react chemically because they are both inert gases. The resulting mixture would simply contain a combination of neon and nitrogen gases. Neon is known for its bright red-orange glow when electrically charged, so the mixture might emit a similar color if placed in a discharge tube.
Mixture
Eudiometer is an instrument which measure the change in the volume of gas (or mixture of gases) as a consequence of chemical or physical processes.
Toothpaste is a mixture.
Neon glows reddish-orange in a vacuum discharge tube
The words are literal , a water tube boiler is water inside the tubes with hot gases surrounding them and a fire tube boiler are got gases within the tubes with water surrounding them.
Yea
Gases have no definite volume or shape. The air that you breathe, the helium in a balloon, and the neon inside the tube in a neon light are gases.
Vacuum tubes are typically evacuated of gases to create a vacuum inside. However, some specialized vacuum tubes may use inert gases like argon or neon to improve performance or provide specific characteristics.
A Smith fermentation tube is a tube that is used for the fermentation of carbohydrates. It also collects any gases that result from the fermentation.
Draft tube or pcv system.Draft tube or pcv system.
Generally, yes, there are capacitors in a flash unit for a camera. The flash needs a lot of energy "right now" in order to work properly. And at suffiencient voltage to cause the flash tube to flash, too. Let's look at some particulars. Jump with me. Any battery stores energy and delivers it (when it is not damaged or run down), but the battery only has a limited ability to supply a large amount of current. In fact, most all batteries in flash units (either the ones built into the camera or the independent ones you by and plug into your camera) don't have the ability (or the output voltage!) to deliver what the flash needs to work properly. That big shot of current, and at a high enough voltage to ionize the gases within the flash tube, can't be delivered by battery. That's why the flash unit will, when turned on, take a steady amount of current from the battery, put it through a "chopper" or voltage multiplier to step it up to a sufficient level, and pour it into a capacitor to store it in preparation for discharge through the flash tube to create the flash. This also explains the few seconds needed in recovery time before you can use the flash again.
low pressure mercury vapours
Yes, generally neon