Which of the following are decomposition reactions? 1. CH. (g) + O, (g) – CO, g) + H2O (0) 2. CaO (s) + CO, g) - CaCO, (s) 3. Mg (s) + O2 (g) -
Mgo (s) 4. PbCo, (s) PbO (s) + CO2(g) *
2, 3, and 4
2 and 3
All are decomposition reactions,
4

i'm assuming that the correct answer is indeed the first one/ "a"..

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  

answerlinnaeus;

nuclear fission produces elements that are heavier than helium.

the elements that are used in nuclear fission and their products are much heavier than helium.