Seth learned in school that iron reacts with oxygen in the air to form iron oxide. The chemical equation is Fe + O2 → FeO2
Seth wanted to see if this would really happen, so he put 13 grams of tiny iron We) pieces on the window sill outside his
,
house. After two weeks, he saw that the iron no longer looked shiny. He checked the mass of the pieces and saw that it went
from 13 to 21 grams. Seth's friend said this shows that matter is not conserved
Do you agree or disagree with Seth's friend? Write a scientific explanation to support your position?

i don't see a text, but i am gonna assume this *orbit* the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them  

може ли да зареждате повече информация, моля