Answer:
C
Explanation:
A physical change is when the form of the matter is just altered. While a chemical change results from a chemical reaction. No reaction is happening during the mixing of the two colors [nothing is boiling, freezing, evaporating, melting ext.] , but after you mix them the end result does look different. That only because we changed the physical properties of it.
(B is not a physical change because the baking powder inside of the cake must under go a reaction that causes the cake to rise. )
Answer:
Alchemy is based on mystic view of reality whereas chemistry is based on experiments, observations and facts.
4 because electrons and protons have the same magnitude and electron is - and proton is +.
<h2>2 Cu + 1/2 O2 --> Cu2O + Cu2O + 1/2 O2 --> 2CUO</h2><h2 /><h2 /><h2>Copper is oxidized since it went from being an oxidation number of 0 to +2. </h2><h2 /><h2 />
Answer:
DNA from dead Streptococcus cells entered live cells and altered the live cell's characteristics
<em>I hope this helps you</em>
<em>:)</em>
