Respuesta :
Im sorry but these are the only few I know, or at least think they are correct;-;
Answer:
3.
type of reaction that has occurred in a flask when it becomes warmer: exothermic reaction
8:
gold is an example: Element
10:
tastes sour: acid
2:
the carbon-oxygen bond is an example: covalent bond
4:
type of reaction that has occurred in a flask when it becomes colder: endothermic reaction