Answer:
a. KCl
Explanation:
a. KCl - made of 2 elements
b. NH4Cl
c. KClO3
d. NH4ClO3
Answer: shorter wavelength and equal speed
Is air a compound mixture or a element. compound
1: energy
2: converts
Kinetic energy is either 3 or 4, those questions are really similar.
D
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Coal is layered because it is a type of sedimentary rock