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Law Incorporation [45]
3 years ago
15

How a diet high in starch could help an athlete perform well

Chemistry
1 answer:
Alex777 [14]3 years ago
7 0

Answer:Carbohydrates improve athletic performance by delaying fatigue and allowing an athlete to compete at higher levels for longer.

Explanation:

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An ion of oxygen- 16 contains 8 protons and has a 2- charge. How many electrons does it have?
Verdich [7]

Answer:

i would say 10, so the anser is A.

Explanation:

because there are the same number of protons and electrons, therefore for a regular O, you are supposed to have only 8 protons, but it is charged, thus, whatever the charge is will be taken into consideration into how much the proton and electron doe it have. Thus, for this case, it has 10, because the charge is negative and you have 8 electron plus 2 = 10.

3 0
2 years ago
A chemist who studies water samples did a demonstration of how to test for lead in water. She added a clear solution of potassiu
Lerok [7]

Answer:

The swirling yellow solid formed is lead iodide (PbI₂).

Explanation:

  • The reaction of potassium iodide (KI) with lead nitrate (Pb(NO₃)₂) will produce lead iodide (PbI₂) and potassium nitrate (KNO₃) according to the equation:

2KI + Pb(NO₃)₂ → PbI₂↓ + 2KNO₃

  • Lead iodide (PbI₂) is a yellow swirling precipitate that is formed from the reaction.
3 0
3 years ago
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After 4 half-lives 10 grams of uranium remains. How much uranium did you start with?
Free_Kalibri [48]

Answer:

i think 40 grams

Explanation:

4 0
3 years ago
A solution is prepared by dissolving 51 g of salt in 340 g of
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3 years ago
What is the mass of air in room
tigry1 [53]

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the mass of the air in the room is 4.96512 kg ( in 0°C)

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