Dalton’s theory states that atoms are the smallest possible parts of elements. In a chemical reaction, atoms will .rearrange and form new substances with new properties.
.change form into completely new atoms with new properties.
.be destroyed and remade into new substances.
be turned completely into energy

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte