There are plenty of guides on silver soldering online. Sites such as wikiHow provide step by step guides to silver soldering, however it may be a better idea to watch an informal video with a practical guide on sites such as YouTube, Vimeo or DailyMotion instead.
No.
If it's silver solder, very little. If it's not silver, nothing.
Silver jewelry requires that you use silver solder for repairs. It is silver based where common solder is lead or tin based. Standard solder is too acidic and will corrode the jewelry. It can probably be found on e-bay. Or ask a jeweler where he or she gets it.
Silver solder.
Silver solder.
If you're looking for treasure, it is not there. However, there are types of solder that have silver in it so there may be traces of silver in the solder joints on your motherboard.
silver alloy ,
No. 100% silver would be pure silver. Noble silver, Argentium nobalis. which is super soft and shiny. it is very difficult to tarnish. Silver solder is an alloy. An alloy being a mixture of metals. Hard solder is around 67% silver eg. the amount of silver generally goes down as its melting temperature goes down. Soft solder is likely around 45% eg. it could vary massively from company to company and application. A recipe for hard solder is. 1/2 parts tombac brass, to 1 part pure silver. Adding 5% zinc to this, would lower its melting temperature enough to call it softer solder for aplication. Caution, careful of this recipe for jewelry application. it might not meat your countries standard for silver content and you could be breaking the law. Research the percentage of silver necessary to meat the requirements. do not add metals to it you know nothing about. You could hurt someone. All of this should be do buy someone with good knowledge.
Solder is manufactured in hundreds of different grades and compositions for thousands of different applications. Solder that might be described as "Silver solder" is most commonly commercially manufactured in about 50 different compositions with silver contents of up to 40% and is priced accordingly. Silver solder is often used in jewellery making and repair, engineering and many electrical manufacturing processes.
Typically one solders sterling silver with silver solders. There is not a solder called "sterling solder." You can choose from an array of silver solders ranging from easy (extra soft) through hard. Soft solders have lower silver content and melt at a lower temperature. Hard solders have higher silver content and flow at higher temperatures. If you are doing multiple solder joints on a single piece of solder you will need to use several grades of solder. However, if you are just creating a single solder joint than it is best to use a soft or medium solder.
silver grey
Silver solder