1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Mariulka [41]
3 years ago
10

Iodine-131 is a radioactive isotope with a half-life of 8 days. how many grams of a 64 g sample of iodine-131 will remain at the

end of 24 days?
Chemistry
1 answer:
icang [17]3 years ago
7 0
At the end of 24 days, there will only be 16 g.
You might be interested in
A cell contains the same DNA as its parent cell. This is a result of which process? mitosis meiosis gamete formation fertilizati
lesya692 [45]

Answer:

Mitosis

Explanation:

A cell that contains the same DNA as its parent cell is a product of mitosis.

  • Mitosis is a cell division process that takes place in somatic cells.
  • In meiosis a single cell divides to produce two daughter cells each having the same DNA as the parent
  • Mitosis ensures that the same DNA is found between the parent
  • Mitosis is used for repairing and production of new cells.
3 0
2 years ago
Read 2 more answers
Name four ways that bacteria are helpful to people
vesna_86 [32]
<span>gives you dairy products 
helps fight disease 
helps digest food 
They are used in the manufacturing of antibiotics.</span>
8 0
4 years ago
Which of the following examples illustrates a number that is correctly rounded to three significant figures?
Naily [24]

Answer:

c. 20.0332 g to 20,0 g

Explanation:

A significant figure is each of the digits of a number that are used to express it to the required degree of accuracy, starting from the first non-zero digit, with the exception of the trailing zeros.

<em>Which of the following examples illustrates a number that is correctly rounded to three significant figures? </em>

a. 109 526 g to 109 500 g. NO. The rounded number has 4 significant figures: 109 500.

b. 0.03954 g to 0.040 g. NO. The rounded number has 2 significant figures:  0.040.

c. 20.0332 g to 20.0 g. YES. The rounded number has 3 significant figures:  20.0.

d. 04.05438 g to 4.054 g. NO. The rounded number has 4 significant figures: 4.054.

e. 103.692 g to 103.7g. NO. The rounded number has 4 significant figures: 103.7.

8 0
3 years ago
What does a chemist do​
Mama L [17]
A chemist (from Greek chēm (ía) alchemy; replacing chemist from Medieval Latin alchimista[1]) is a scientist trained in the study of chemistry. Chemists study the composition of matter and its properties. Chemists carefully describe the properties they study in terms of quantities, with detail on the level of molecules and their component atoms. Chemists carefully measure substance proportions, reaction rates, and other chemical properties. The word 'chemist' is also used to address Pharmacists in Commonwealth English.
3 0
4 years ago
You're provided a 0.50 M solution of HCl. How many moles of HCl are present in 25 ml of this solution? ​
ddd [48]

Answer:

0.0125 moles of HCl

Explanation:

(0.50 mol/L)(0.025 L) = 0.0125 moles of HCl

4 0
3 years ago
Other questions:
  • Assessment timer and count Assessment items Item 3 What condition would most likely cause a decrease in the salinity of ocean wa
    11·1 answer
  • If 100. mL of 0.400 M Na2SO4 is added to 200. mL of 0.600 M NaCl, what is the concentration of Na+ ions in the final solution? A
    14·1 answer
  • What is produce in all chemical reactions?
    8·1 answer
  • What happens if a cell cannot do cellular respiration?
    14·1 answer
  • Can someone please help me I need the answer right now
    6·1 answer
  • 4. If they..................me a question d have answered it.(ask/asked/had asked)​
    7·2 answers
  • 6. The substance whose Lewis structure shows triple covalent bonds is
    7·1 answer
  • Marcus read that systems provide feedback, or the return of information. Feedback can either cause a change in the system or kee
    6·1 answer
  • A) 24 g<br> B) 36 g<br> C) 48 g<br> D) 60 g
    11·1 answer
  • Which of the following is NOT a feature found on the Moon?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!