Answer:
It will react with the carbon dioxide that is in the air
Explanation:
When it reacts it will turn to sodium carbonate
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Answer:
The structure of each cell type's wall.
Explanation:
The basis of Gram stain is differentiating cells in two different categories depending on the composition of the cell wall. Gram positives fixate a KI and Crystal Violeta complex in their peptidoglycan wall, but otherwise, gram negatives don't have a thick layer of this, and therefore, when the wash process happens it takes away all the pigments leaving the cells blank for the last pigment (pink).
Answer is 3 it uses chemical and physical changes when using stomach acid and physical when turning food in your stomach.