Which trem are used to identify pure substances?
2 answers:
Answer:
answer is B
Explanation:
hope that help uwu yw
B, an element and a compound.
Explanation: pure substances are only made up of a single atom (a element) or one type of molecule(a compound. )
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Answer:
R = 480 Ohm
Yes, the current is steady since the power supply is a constant 12V (comming from the battery).
Explanation:
U=I*R
R = U / I
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