Answer: The answer is element
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Answer:
C
Explanation:
You can see in the chemical equation that 7 
are used up to produce 6
Answer: Polystyrene (PS) is a polymer made from the monomer styrene, a liquid hydrocarbon that is commercially manufactured from petroleum.
Explanation:
answer of this question is [Ar]3d8 4s2
Answer: 2.7 centimeters long.
Explanation: count from starting at the beginning of the number on the ruler "2" and counted up until the end of the blue object. Counted 7 lines, so, 2.7 is the correct answer.
