Answer:
C. grinding the reactants into finer grains
Explanation: I just took the assignment.
Answer:
In a chemical reaction, only the atoms present in the reactants can end up in the products. No new atoms are created, and no atoms are destroyed. In a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.
Explanation:
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With that information you can calculate the mean or average.
Given that it is uniformly distributed in that range, it means that the function is symmetrical around the mean, i.e. the mean is at the center of the distribution => mean = (0.99 + 0.76) / 2 = 0.875
Explanation:
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Answer:Strontium-90 and cesium-137 have half-lives of about 30 years (half the radioactivity will decay in 30 years). Plutonium-239 has a half-life of 24,000 years. High-level wastes are hazardous because they produce fatal radiation doses during short periods of direct exposure.
Explanation:
