Fossils are important evidence for evolution because they show that life on earth was once different from life found on earth today
Answer:
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<em><u>Empirical formula = C4H4S</u></em></h2>
Explanation:
The subscripts in a formula determine the ratio of the moles of each element in the compound. To convert this formula to the empirical formula, divide each subscript by 2. This is similar to reducing a fraction to its lowest denominator.
Answer: look on my page ill help you with this one but im not sure if it would be right because i dont really understand myself but look on mine
Explanation:
Some patterns and trend that are present in the periodic table would be
1. electronegativity (from left-to-right it increases across the table)
2. ionization (from left-to right it increases and from bottom-to-top it increases)
3. electron affinity (same as ionization energy)
4. atom radius (increases opposite way; from right-to-left it increases and from top-to-bottom it increases)
5. melting point (higher melting points with metals and lower melting point with non-metals)
6. metallic character (same as atom radius)
