Answer:
Ending Mexican-American War
Explanation:
Treaty of Guadalupe Hidalgo was created after United States troops managed to conquered their capital in Mexico City. The Mexican government proposed the treaty to prevent more unnecessary bloodsheds.
The Mexican government agreed to give United States with the ownership o Carolina and New Grande. In exchange, the United States government need to pull their troops from Mexican territory.
I would say the answer is A. Dimitri made the modern periodic table, not chemical symbols, and generally compounds do not have the same properties, for example water which is made of 2 gases.
ticks are parasites, they harm the dog
Maybe you could try and use a little grammar, and make the question clearer.