Answer:
.87
Explanation:
Density is a mass divided by volume
The correct answer is a.) C. Oxidation occurs when an element loses electrons and increases its oxidation state. In the chemical equation, Carbon in CH4 has an oxidation state of 4- while Carbon in CO2 has an oxidation of 4+.
Answer:
0.72
Explanation:
if 760=1
550=x
=550÷760= 0.72 in two s.f
Los alquimistas querían cambiar el plomo en oro. Esto es, para crear algo de nada
Mixing water and sugar is a physical change. A physical change is just a change in the form of the substance, whereas a chemical change is when the substance itself changes… chemically. An easy way to figure out which is which is trying to "undo" the change. If it can be undone, it is physical.
