3 years ago

Gold has a specific heat of 0.33cal/gC. If a 4g gold ring changes from 25C to

Chemistry

1 answer:

Nutka1998 [239]3 years ago

5 0

48 cal is what I put on mine

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4 years ago

PLEASE HELP ME If a radioactive substance has an initial mass of 50 grams

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Answer: $3.125\ g$

Explanation:

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$A=A_o2^{-\dfrac{t}{T_{\frac{1}{2}}}}\\\\\text{Insert the values}\\\\A=50\cdot 2^{-\dfrac{20}{5}}\\\\A=50\cdot 2^{-4}\\\\A=\dfrac{50}{16}\\\\A=3.125\ g$