Which is not a change that may occur during metamorphism

An atom of nitrogen had seven protons in its nucleus. how many electrons does it have

Why does bubbling occur when vinegar mixed with baking soda

50 points! which of the following is an inference? a burning candle is extinguished when it is covered with a jar. the candle burns longer than expected in a jar that has a plant in it. a plant lives longer than expected in a jar that has a burning candle. there is more oxygen in the jar because there is a plant in it.