Maria and miquel were enjoying the fireworks when they got into a chemistry argument. maria insisted that the fireworks were the result of a chemical reaction. miguel disagreed. what would you tell them to solve this argument. a) it is a change of state, solid to gas, due to the addition of energy. b) it was a physical reaction since the fuse was lit and heat was produced. c) the color changes and the release of energy indicate a chemical reaction. d) it is an endothermic reaction because energy was added; therefore it is a chemical reaction,

C) The color changes and the release of energy indicate a chemical reaction.

Explanation:

The color changes in the fireworks when they start to burn is derived form the different compounds that are being burnt, for example strontium carbonate when is burnt it burns in a red color, barium chloride is colored green when is burnt but that is why it is a chemical reaction, because of the added energy and the color that it expells.

your answer would be fusion

d₁ = displacement of tern from arctic to antarctic = 11000 miles

d₂ = displacement of tern from antarctic to arctic =   - 11000 miles

d = total displacement for the journey

total displacement for the journey is given as

d = d₁ + d₂

d = 11000 + (-11000)

d = 0 miles

t₁ = time of travel from arctic to antarctic = 3 months = 3 x 30 days = 90 days

t₂ = time of travel from antarctic to arctic = 3 months = 3 x 30 days = 90 days

t = total time of travel

total time of travel is given as

t = t₁ + t₂

t = 90 + 90

t = 180 days

average velocity is given as

average velocity = total displacement/ total time

v = d/t

v = 0/180

v = 0 miles/day