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Lera25 [3.4K]
4 years ago
12

Convert them and please show work

Chemistry
1 answer:
Juliette [100K]4 years ago
5 0
A) 1.999 moles He
b) 0.50 moles Cu

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WILL GIVE FREE BRAINLIEST EVERYDAY! DO NOT look up answers!! PLEASE FOLLOW DIRECTIONS ON FUTURE QUESTIONS OR WRONG!!! (Branliest
Maslowich

Answer:

  • <u>Purpose of Iodine:</u>

Iodine plays a vital role in thyroid health. Our thyroid gland, which is located at the base of the front of your neck, helps regulate hormone production. These hormones control your metabolism and heart health.

  • <u>Symbol:</u>

The symbol of Iodine is " I ".

  • <u>Atomic Mass:</u>

Atomic mass of Iodine is 126.90447 u

  • <u>Protons:</u>

No. of protons in Iodine is 53.

  • <u>Neutrons:</u>

No. of neutrons in Iodine is 74.

  • <u>Electrons:</u>

No. of electrons in Iodine is 53.

8 0
3 years ago
The complete combustion of 0.611 g of a snack bar in a calorimeter (Ccal = 6.15 kJ/°C) raises the temperature of the calorimeter
Bogdan [553]
Focus your attention to the units of the given data and the unit of the final measurement you're going to solve. Through dimensional analysis,you know that the working equation would be:

Food Value = CcalΔT/m
Food value = (6.15 kJ/°C)(1.29 °C)/0.611 g = 12.98 kJ/g

Convert kJ to cal (1 kJ = 239 cal)
Food value = 12.98*239 =<em> 3,103.28 cal/g</em>
4 0
3 years ago
2. In pigeons, the allele B produces ash-red feathers. The allele b produces
bearhunter [10]

Answer:

it is C

Explanation:i had this on my test and got it right lol

6 0
3 years ago
Which of the following lists the types of single substances? (Select only one answer)
bogdanovich [222]

Answer:

I think it might be elements and compounds! I may be wrong though.

5 0
3 years ago
Each elements on the periodic chart is made up of a certain kind of atom. Agree or Disagree reason why
shutvik [7]
All atoms are made up of different amounts of atoms. Ex: some may have two some may have 3
4 0
4 years ago
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