What do the law of conservation of energy state ?

Explanation:

According to the law of conservation of energy,you neither can destroy or create energy and in a chemical reaction the both sides of the equation i.e , products and constuent,The no. is equal.

What does the law of conservation of matter state?

The Law of Conservation of Matter states that matter cannot be created or destroyed. In a physical change, substances can change form, but the total mass remains the same.

Explanation:

eliminate individuals who opposed his rule

its main object was the establishment of "settlement houses" in poor urban areas, in which volunteer middle-class "settlement workers" would live, hoping to share knowledge and culture with, and alleviate the poverty of, their low-income neighbors.