Answer:
Cretaceous Period
Explanation:
Dinosaurs went extinct about 65 million years ago (at the end of the Cretaceous Period), after living on Earth for about 165 million years.
Answer:
When you balance a chemical equation you change coefficients.You never change subscripts. A coefficient is a whole number multiplier. To balance a chemical equation you add the coefficients to make sure there are the same number of atoms on each side of the arrow.
Explanation:
Hope this helps. MARK BRAINLEST!!
Answer:
Formic acid H. COOH
Acetic acid CH3.COOH
Propionic acid CH3 . CH1 . COOH
Butyric acid CH3 . CH1 . CH1 . COOH
Explanation:
Answer:
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