In a heterogeneous mixture this is not the case. Chicken soup is a heterogeneous mixture. Copper (II) nitrate is therefore a compound. However, dissolved in water, it forms a mixture of water molecules and ions.
Spirulina is a type of blue-green algae widely available in health-food stores as a dietary supplement. With a mineral-rich content, spirulina is high in calcium, iron, magnesium, potassium and zinc.It contains varying levels of iodine also.Some manufacturers market spirulina for thyroid support due to its iodine content. If you're considering taking spirulina specifically to benefit from its iodine content, there are some safety concerns for you to consider.ome manufacturers market spirulina for thyroid support due to its iodine content. If you're considering taking spirulina specifically to benefit from its iodine content, there are some safety concerns for you to consider.
Spirulina is a good source of vitamin B2, copper and it contains some iron (up to 2mg per tablespoon). However, it is not a particularly rich source of any other essential vitamin or mineral, including calcium (less than 9mg in a tablespoon).