You need three sodium ions to balance the charge of one phosphate ion.
Answer:
about or referring to the confluence of social and economic variables
Explanation:
Socioeconomic status is the social standing or class of an individual or group.
Answer:
what kind of physical? for humans?
I believe the answer is: Consumers must be knowledgeable
Competition in the free market encourage producers to keep reducing the cost to make their products so it come up cheaper compared to competitors' products. This improve the chance of them using materials or methods that are dangerous for the consumers. Consumers need to be knowledgeable to distinguish the things hat might endanger us and which things are not.
