Answer:
Sound waves are used for measurement in hertz.
Explanation:
In a double covalent bonds there are 4 valence electrons that are shared.
Answer:
See below
Explanation:
Molecular formula ( just write down all of the elements ) C 4 H4 O4
Empiracle formual CHO
"Molecular formulas tell you how many atoms of each element are in a compound, and empirical formulas tell you the simplest or most reduced ratio of elements in a compound"
Answer:
2As2S3 + 9O2 = 2As2O3 + 6SO2
Explanation:
Substances that are not chemically bonded are mixtures.