There is no SI "base unit" for area. Originally there was a unit called an are which was equivalent to 100 square meters, but this has fallen out of favor. The hectare (100 are, or 10,000 square meters, or the area of a square 100 meters on a side) is also sometimes used, but it's not a base unit.
Area is a derived quantity (from the unit for length), so the most appropriate SI unit for area is the square meter.
The SI base unit for mass is the kilogram, symbolized as kg.
Yes, the kilogram is the SI base unit for mass. Fun fact: the kilogram is the only SI base unit with a prefix.
There are seven SI Base Units. These are:metre -distancekilogram -masssecond -timeampere -electric currentkelvin -thermodynamic temperaturecandela -luminous intensitymole -amount of substanceAll other SI units are called Derived Units.Read more: at the related link
Yes, the ampere is an SI base unit, one of the seven, and equals the passage of a Coulomb of charge per second. Its official definition has to do with force between current carrying wires though.
If, by 'metric system', you mean the 'SI system', then there is no base unit for volume. The unit for volume is called a 'derived unit', and it is the cubic metre (m3).
Candela is the SI base unit for luminous intensity, and its symbol is cd. The ounce is not an SI unit, but it is commonly used for mass and not interchangeable with SI units. Newton is the SI base unit for force, and its symbol is N.
The SI base unit for temperature is called the Kelvin (K).
The SI base unit for temperature is the Kelvin (K).
The SI base unit for mass is the kilogram
A second is a SI base unit.
There is no SI Base Unit for energy. The unit for energy, the joule is a Derived Unit.
Neither is an SI base unit.
The SI base unit for temperature is the kelvin.
The SI base unit for mass is the kilogram, symbolized as kg.
The mass is sometimes informally called the "amount of substance", though this is not very precise. The SI unit for mass is the kilogram.
Yes, the kilogram is the SI base unit for mass. Fun fact: the kilogram is the only SI base unit with a prefix.
There are seven SI Base Units. These are:metre -distancekilogram -masssecond -timeampere -electric currentkelvin -thermodynamic temperaturecandela -luminous intensitymole -amount of substanceAll other SI units are called Derived Units.Read more: at the related link