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what is the molar mass of na2co3?

In which of these cases are the two wave points considered to be in phase with each other?

Which are examples of how technology has advanced scientific understanding.1using hot water to sterilize medical equipment.2transplanting a human organ into another individual.3inserting genes from one sheep into another cell to make a cloneunderstanding the different structures that make up a cell.4examining microorganisms from the deepest parts of the ocean

What natural processes produce large quantities of co2