Answer & Explanation:
Chemical properties are properties that can be measured or observed only when matter undergoes a change to become an entirely different kind of matter. They include reactivity, flammability, and the ability to rust. Reactivity is the ability of matter to react chemically with other substances.
i look it up ok
At least three a day because one for breakfast one for lunch and one for dinner
2x+1.5x+9 would be the equation to use here
1000 calories, as 1 calorie is the energy needed to raise 1g of water by 1 degree at normal atmospheric pressure.
