Answer:
B. Metal
Explanation:
The catalyst used in the converter is mostly a precious metal such as platinum, palladium and rhodium. Platinum is used as a reduction catalyst and as an oxidation catalyst. Although platinum is a very active catalyst and widely used, it is very expensive and not suitable for all applications.
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Answer:
c. ceramic
Explanation:
because b d and a are metals c is not
Answer:
i need help with that too.
Explanation:
The answer is D; Mass and Velocity
Every cube would contain 1 milliliter of water, or .01 liter
