Answer: B- Isotopes are often used for dating artifacts and fossils is incorrect.
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The shape of an igneous rock is based on the time it takes for the rock to cool. The quicker an igneous rock is formed, the smaller the rock is going to be. If an igneous rock cools down slowly, It will be larger. Therefore an igneous rock with large crystals cooled down slowly. Therefore the answer is choice 1.
Answer:
white
Explanation:
A white precipitate of barium sulfate forms if sulfate ions are present. The hydrochloric acid is added first to remove any carbonate ions that might be present - they would also produce a white precipitate, giving a false positive result. Barium nitrate solution can be used instead of barium chloride solution
The energy generated by the movement of electrons is used to pump electrons across the inner mitochondrial membrane to an area of higher concentration. 17. Where do these protons (H+) come from? The originally came from a glucose molecule and were carried to the electron transport chain by NADH and FADH2.
The answer would be glucose molecule.