2 years ago

Help I really help on this

1 answer:

8 0

I think it’s C but not certainly positive

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irina [24]

Answer:

The answer is B The aluminum metal.

Explanation:

have a wonderful day! do good in school you got this! :)

4 0

3 years ago

maxonik [38]

Answer: The 234.74 grams of sample should be ordered.

Explanation:

Let the gram of 114 Ag to ordered be $N_o$

The amount required for the beginning of experiment = 0.0575 g

Time requires to ship the sample = 4.2hour = 252 min(1 hr = 60 min)

Half life of the sample = ${t_{\frac{1}{2}}$ = 21 min

$\lambda =\frac{0.693}{t_{\frac{1}{2}}}=\frac{0.693}{21 min}=0.033 min^{-1}$

$\log[N]=\log[N_o]-\frac{\lambda t}{2.303}$

$\log[0.0575 g]=\log[N_o]-\frac{0.033 min^{-1}\times 252 min}{2.303}$

$N_o=234.74 grams$

The 234.74 grams of sample should be ordered.

4 0

3 years ago

Ronch [10]

Answer:

the sun is the smallest object in our Solar System

Explanation:

7 0

3 years ago

Alinara [238K]

Yeas, the reaction is balanced

6 0

3 years ago

alekssr [168]

HM, I think the answer would be D. This is just a guess, so please use it if ou want to answer D it's ok :D

5 0

3 years ago