Usually, percent yield is lower than 100% because the actual yield is often less than the theoretical value. Reasons for this can include incomplete or competing reactions and loss of sample during recovery. Percent yield is always a positive value. I hope this can help you
Answer:
1)50.007 grams of an isotope will left after 10 years.
1)25.007 grams of an isotope will left after 20 years.
3) 23 half-lives will occur in 40 years.
Explanation:
Formula used :
where,
= initial mass of isotope
N = mass of the parent isotope left after the time, (t)
= half life of the isotope
= rate constant
We have:
1) mass of isotope left after 10 years:
t = 10 years
2) mass of isotope left after 20 years:
t = 20 years
3) Half-lives will occur in 40 years
Mass of isotope left after 40 years:
t = 40 years
number of half lives = n
n = 23
23 half-lives will occur in 40 years.
Answer:
Decomposers break down the dead organism and return the carbon in their bodies to the atmosphere as carbon dioxide by respiration
Answer:
A) Phosphorus
Explanation:
<em>Look At Question 5) On The Answer Key </em>
D! the molecules of the warmer water would have a higher average kinetic energy :)