quizzes questions

Question 1

another word for precipitate is

Answer 1

solid

Question 2

a solid is also known as a

Answer 2

precipitate

Question 3

the formation of a solid (a precipitate), a change in color, the formation of bubbles, the spontaneous increase or decreasein temperature in a reaction mixture (exothermic process or endothermic process), and the disappearance of a solid are all examples

Answer 3

of chemical changes

Question 4

state some examples of chemical changes

Answer 4

formation of a solid, change in colour, formation of bubbles, endo/exo thermic

Question 5

fire is an example of an endothermic or exothermic reaction?

Answer 5

exothermic

Question 6

a snowman is a endothermic or exothermic reaction?

Answer 6

endothermic

Question 7

explain why a campire would be exothermic

Answer 7

because of the heat emitted

Question 8

a solid to a liquid it exo or endo thermic?

Answer 8

endothermic

Question 9

an ice pack is an example of endo or exo? and why

Answer 9

endo. Because it is taking in heat