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I guess because wax has a much lower melting point than gold, and it is harder to melt gold. Gold takes a lot more time to melt, and solidify, and you would need EXTREME heat to evaporate it.
Also, gold is usually set to solidify in pretty shapes for jewellery, so to keep melting it weakens it. Gold is very expensive, and most people would consider it too expensive to be used for such basic experiments as changes of state.
Wax is easier, cheaper and faster to get hold of and to heat and cool.
^ I used my common sense for that, it's all right, but for more detail and exact measurements and methods, you may want to research it further.
What else can I help you with?
Is pouring molten gold into a mold a physical change?
Yes. Gold would have to bond with something for it to be a chemical change.
Is Pouring molten gold in a mold a physical or chemical change?
Pouring molten gold in a mold is a physical change because it involves a change in state from liquid to solid without altering the chemical composition of the gold.
How do you use a gold test kit?
To use a gold test kit, start by taking a small sample of the gold item and applying the testing solution provided in the kit. Observe the color change - if the solution changes color, it indicates the presence of a lower karat gold alloy. Compare the color change against the reference chart in the kit to determine the karat of the gold.
A piece of solid gold that changes from a solid to a liquid is a physical or chemical change?
The change from solid gold to liquid gold is a physical change because it does not alter the chemical composition of the gold. The transition from solid to liquid is a result of a change in temperature and does not involve any chemical reactions.
Is forming a bar of gold into wire a physical change or a chemical change?
Still a physical change because its still gold and weren't doing anything like making a new element or mixing chemicals with the gold. So its still a physical change.
Is boiling gold a physical change?
Melting of gold for jewellery making is a physical change as no new substance is formed after melting. Changes in state or phase are physical changes.
Does gold change is state?
Yes gold melts to liquid gold at 1063C and boyls to gaseous gold at 2600C
Is pouring molten gold into a mold a physical change?
Yes. Gold would have to bond with something for it to be a chemical change.
Is Pouring molten gold in a mold a physical or chemical change?
Pouring molten gold in a mold is a physical change because it involves a change in state from liquid to solid without altering the chemical composition of the gold.
Why is aluminum easier to extract then gold?
It is not. Gold is easier. Aluminium is energy intensive.
How do you use a gold test kit?
To use a gold test kit, start by taking a small sample of the gold item and applying the testing solution provided in the kit. Observe the color change - if the solution changes color, it indicates the presence of a lower karat gold alloy. Compare the color change against the reference chart in the kit to determine the karat of the gold.
A piece of solid gold that changes from a solid to a liquid is a physical or chemical change?
The change from solid gold to liquid gold is a physical change because it does not alter the chemical composition of the gold. The transition from solid to liquid is a result of a change in temperature and does not involve any chemical reactions.
Is forming a bar of gold into wire a physical change or a chemical change?
Still a physical change because its still gold and weren't doing anything like making a new element or mixing chemicals with the gold. So its still a physical change.
How did California's gold rush change the state so significantly?
It received a massive influx of immigrants.
How did the city of California change after gold was found?
There is no " city of California". We have a state of CA with many cities.
When gold is melted does it weigh less?
No, when gold is melted it does not weigh less. Its mass remains the same, but its volume may change depending on its state (solid or liquid).
Why is there more money then gold?
Gold is more precious, and currency is easier to create.
