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When seawater is heated until all the water evaporates the only thing that is left behind is table salt true or false?
False. When seawater is heated until all the water evaporates, salt crystals are left behind, not table salt. Table salt is a refined form of salt that is typically extracted from underground salt deposits or sea salt that has been processed to remove impurities.
What is the different between seawater and table salt dissolved in water?
Seawater is a naturally occurring solution of water and various salts and minerals, while table salt dissolved in water is just sodium chloride dissolved in water. Seawater has a more complex composition with a variety of dissolved ions, while table salt solution is primarily made up of sodium and chloride ions.
How long has sodium been around?
Sodium has been present on Earth since the planet's formation around 4.6 billion years ago. It is one of the most abundant elements on Earth and can be found in various minerals, seawater, and even in our own bodies.
A1.0 mL sample of seawater contains 0.00000000004g of gold the total volume of seawater is 150000000000000000000L calculate the total mass of gold present in seawater?
based on your assumed data: 4.0*10-11 gms/ml, 1000ml per L => 4.0*10-8 gms/L => 4.0*10-5 grams/1000L or 1 tonne 15.0*1019 L 4*15==60=6.0*101 1019 L *10-8 gms/L *101 => 19-8+1=12 adding powers Answer: 6.0 *1012 gms. or 6 *109Kgms = 6,000,000,000 kgms Your data may be showing too low a concentration of gold. "It's been estimated that there is a milligram of gold in a ton of seawater." One tonne (metric) tonne is 1000 litres. 4.0*10-5 grams/1000L = 4.0*10-2 milligrams/1000L = 0.04 milligrams/tonne The quote above, if correct is 1.0 milligrams/tonne or 25 times what you are showing. ----some clippings on amount of gold in seawater - I don't know if these are accurate-- There is a huge quantity of gold is seawater. But it's distributed widely - across all the oceans of all the world - and is incorporated on the atomic level. That makes it very, very hard to separate out. No one has demonstrated that it can be done economically. The concentration of gold in seawater varies from place to place, and ranges between 5 to 50 ppt (about .005 to .05 tonnes (5 to 50 kg) per km3) {It's been estimated that there is a milligram of gold in a ton of seawater.} Given that the volume of all the seas is about 1.37 billion km3 The total amount of gold in all the seas is about 7 to 75 billion kg. ------- Gold occurs in sea water to the extent of 0.1 to 2 mg/ton, depending on the location where the sample is taken. 1 cubic metre is equivalent to: * 1,000 litres -------------------- A cubic metre of pure water at the temperature of maximum density (3.98 °C) and standard atmospheric pressure (101.325 kPa) has a mass of 1000 kg, or one tonne.
What is cornbeef made of?
Corned beef is made from beef brisket that has been cured in a seasoned brine, typically made with salt, sugar, and various spices. The brining process helps tenderize the meat and infuse it with flavor, resulting in a salty and tangy taste.
How have humans made the Nile more salty?
...its connected to the ocean.....therefor it always have been salty.
Does salty tears equal high blood pressure?
Yeah, ask the doctor. But I'm fairly certain that tears have always been salty...
When did rhea become a god?
She was believed to always have been
Is gold being or has gold been extracted from seawater?
Gold has been extracted from seawater, but the cost is not worth the effort for the very small amount that can be obtained.
What evidence is there that salt hasn't been lost when dissolving?
it will taste salty or smell salty there
When Mt St Helens erupted in 1980 did it form a volcanic island?
No. Mount St Helens is over 60 miles from the seawater. It has always been a volcano, but it was never an island.
How can fish live in salty water when salty water hurts humans with a skin injury?
The ocean has always been salty and it is thought that life evolved in the oceans. This means that salt water fish have mechanisms for dealing with the salt in their environment. However, land animals have adapted to live away from the sea and have developed a waterproof covering (skin) to protect us from drying out. (They sort of carry a bit of the ocean with them). This means that if you were to dip your injury into SEA WATER (which is salty) you would NOT find this painful. The water must be made MORE SALTY than sea water before it would hurt. Water this salty would also hurt most fish.
Is bromine man made?
No, bromine exists in nature. It is common in seawater, and in underground aquifers that have been exposed to seawater in the "recent" past.
Did Batman die?
No, Batman is a fictional character and has not died. In various storylines, Batman has been believed to be dead or has faked his death, but he always returns.
Can you take sea water and drink it?
On average, seawater in the world's oceans has a salinity of about 3.5%. This means that every kilogram, or every litre, of seawater has approximately 35 grams (1.2 oz) of dissolved salts.Accidentally consuming small quantities of clean seawater is not harmful, especially if the seawater is consumed along with a larger quantity of fresh water. However, drinking seawater to maintain hydration is counterproductive; more water must be excreted to eliminate the salt (via urine) than the amount of water that is gained from drinking the seawater itself. The effect of seawater intake has also been studied in laboratory settings in rats.This study confirmed the negative effects of drinking seawater when dehydrated.
How many elements have been identified in seawater?
Seawater has been found to contain approximately 70 elements, with the most abundant ones including sodium, chloride, magnesium, and sulfate. These elements play essential roles in the chemistry and biological processes of the ocean ecosystem.
The lost Incan city is believed to have been?
the lost incan city is believed to have been
