It means <span>a substance formed by chemical union of 2 or more elements or ingredients in definite proportion by weight.</span>
<span>Answer:
The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.</span>
Xenon, because the amount of protons=the atomic number, and Xenon’s atomic number is 54. Some elements with similar chemical properties would be Neon, Helium, Argon, Krypton, Nitrogen, etc because they are all in the period #18, which means they have similar properties. They are all noble gases. Hope this helps :)
Answer:
true
Explanation:
the more energy a wave has the greater the amplitude is