Match the following: a) tungsten
e) absolute zero
i) liquid
b) atomic
f) protons
j) corrosion
c) decomposition
g) alcohol
k) hard water
d) solution
h) pH
I) sulfuric acid

16. Due to its melting point, it used to fabricate bulbs filaments._
17. It is a chemical reaction caused by the contact of metal with air._
18. Beaks down of certain substances that creates new simple substances._
19. The measure scale used to define acids._
20. When substance dissolve in another it is called a(n)._
21. Is the state of matter which weight doesn't change, while its shapes can._
22. The number of protons contained in each element, gives that element a(n)
number._
23. Point where all molecules stop moving._
24. Positive particles in an atom._
25. Ethanol is a form of_