The gamma-ray emitting technetium-99m (metastable) is widely used for medical diagnostic studies. Several chemical forms are used to image different parts of the body. Technetium is a remarkable corrosion inhibitor for steel, and adding very small amounts can provide excellent protection.
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Answer: I have the same test message me
Explanation: it won’t let me share my answers
A combustion reaction takes place in the presence of O2 (g). The
products of a complete combustion reaction are CO2 (g) and H2O
(g).
Answer:
6.3 × 10²⁵ atoms of O
Explanation:
Thus, 9.4 mol of C₁₂H₂₂O₁₁ contains 6.3 × 10²⁵ atoms of O.
If an atom is neutrally charged, then it has the same number of protons and electrones. When the atom loses one or more electrones, the protons are more than the electrones and the atom becomes a positively charged ion.