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
DerKrebs [107]
2 years ago
14

the half life for strontium-90 is 29 years. how many half-lives did the sample go through at the end of 87 year​

Chemistry
2 answers:
tatuchka [14]2 years ago
6 0

= 87 : 29

= 3 half lives

Nesterboy [21]2 years ago
4 0
90 divided by 29 x 87 = 290
You might be interested in
How many total electron will fit in the 1st energy level
nevsk [136]
2 elections will fill the first energy level
4 0
3 years ago
Read 2 more answers
What states of matter were present when pure water reached its boiling point
maxonik [38]
I believe it’s evaporation?
7 0
3 years ago
What is the concentration of each type of monosaccharide in lactose
polet [3.4K]

Answer:

Lactose comprises the monosaccharides glucose and galactose and maltose, comprising two glucose molecules, which occurs in barley, wheat, and malt.

Explanation:

5 0
3 years ago
What is a no polar covalent bond?
IRISSAK [1]

Answer:

B

Explanation:

the electrical charges of nonpolar molecules are evenly distributed across the molecule

5 0
3 years ago
What are blocks of time in the geological time scale called?
Katena32 [7]
B is the answer , i got you
7 0
4 years ago
Read 2 more answers
Other questions:
  • How many moles of sodium chloride can react with 18.3 liters of fluorine gas at 1.2 atmospheres and 299 Kelvin?
    13·1 answer
  • The neutral particles found in the nucleus of an atom are referred to as
    13·1 answer
  • _KCIO, - __KCI + ___02
    15·1 answer
  • How many molecules are in 7.5 mol of h2o
    7·1 answer
  • How many significant figures<br> are in this number?<br> 0.00708900
    7·2 answers
  • Which of the following is an element?<br> A. Steel<br> B. Sodium chloride<br> C. Fire <br> D. Carbon
    8·2 answers
  • HELPPPPPPPPPP/AYUDAAAAAAAA
    10·1 answer
  • Calculate the change in temperature of the water in the calorimeter​
    5·1 answer
  • If the air from the problem above contains 22% oxygen, 75% nitrogen and 3% argon, what is the partial pressure of oxygen near a
    9·1 answer
  • How can mechanical waves help in the treatment of cancer?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!