Question: Can someone help me to answer this correctly, please, and explain it. Please answer these 2 short questions, I don't have more money to buy

Can someone help me to answer this correctly, please, and explain it. Please answer these 2 short questions, I don't have more money to buy more questions. These 2 questions are different.

1. a.

Can someone help me to answer this correctly, please, and explain it.

1. b.

Please answer these 2 short questions, I don't have more money to

1. How many moles of Si are there in a sample that contains 3.381022 silicon atoms? moles 2. How many silicon atoms are there in a sample that contains 2.65mol of Si ? atoms A sample of iodine contains 20.0 grams. 1. How many moles of I atoms are there in the sample? mol I 2. How many moles of I2 molecules are there in the sample? molI2

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