1. Mg(NO3)2(aq) +
Ba(OH)2(aq) → Ba(NO3)2(aq) + ___ Mg(OH)2(s)
2.
Al(s) +
CO(NO3)2(aq) → ___AI(NO3)3(aq) +
Co(s)
3.
C6H14(!) +
O2(g) →
CO2(g)
H2O(g)
4.
S(s)
+
O2(g) →
SO3(g)
5
RBOH(s) >
Rb2O(s)
H2O(1)
No

- "the choice that is not an indicator of a chemical change is "state of matter changes". more common than not, chemical reactions produce energy in the form of light or heat. along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid)."

lol idk man i guess u gotta ask bill nye the science guy

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