The difference between primary ans secondary standard solution

Select each correct answer. more than one answer may be correct. which of the following is a characteristic of unicellular organisms? they can possess tissues and organs. all of their functions are performed by a single cell. they are usually microscopic. each of their cells is specialized to perform a specific function.

If i can still dissolve more sugar into the solution at a certain temperature what would i call that solution

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.