<span>Lyle stirs 5.0 grams of salt into a beaker of water. He then adds 15.0 grams of pure iodine to the mixture. If the total mass of the new mixture is 225 grams, what is the mass of the water
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Chemical reaction changes the components of the reactant and often yield products that are chemically different from the reactants. While physical reactions do not change the components of the reactants.
Answer: D NH3
Explanation:When NH3 , popularly called ammonia react with water, the water molecules dissociate into it's components H^+ and OH^-,the H^+ which is the cation forms an hydrogen bond with ammonia NH3 to form NH4^+ while the anion form is OH^-.the reaction itself is a dipolar reaction .
NH3 + H2O_____NH4^+ +OH^-
A composition reaction produces a single substance from multiple reactants. A decomposition reaction produces multiple products from a single reactant.
Hope This Helped
The English scientist John Dalton were one of the early scientists who paved the way to science, particularly in atomic chemistry. His atomic theory jumpstarted further developments made by J.J Thomson, Rutherford, Bohr, Schrodinger and many more.
Dalton's atomic theory can be summarized in 5 key points:
1. Atoms are tiny, indivisible and indestructible particles of an element.
2. Atoms of different elements vary in size and mass.
3. Atoms of an element are uniform in size and mass.
4. Compounds are formulated by a fixed ratio of individual atoms of elements.
5. Reactions undergo by rearranging the atoms of the reactants to form the products.
From the choices, the acceptable answer would be: <span>The ratio of atoms in a compound is fixed. </span>