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
Eddi Din [679]
3 years ago
9

A radioactive substance of mass 768g has a half life of 3 years. After how many years does it leave only 6g undecayed?​

Chemistry
2 answers:
vagabundo [1.1K]3 years ago
8 0

Answer:

The answer is 21 years.

Explanation:

7×3

sammy [17]3 years ago
5 0

Answer:

hi

good morning

myself veeresh

and you

You might be interested in
Express the product of 2.2 mm and 6.00 mm
spayn [35]
Just do 6 x 2.2
6 x 2.2 = 13.2
7 0
4 years ago
Read 2 more answers
Reaction B could produce a substance with a pH of...<br><br> 14.<br><br> 4.<br><br> 10.<br><br> 7.
scoundrel [369]

Answer:

Explanation:

14: Sodium Hydroxide

4: lemon juice.

10: milk of magnesia ; The great Salt Lake

7: pure water

4 0
3 years ago
Read 2 more answers
A vehicle is traveling at a speed of 92.5 km/h. What is this value in feet per second? Note that, by definition, 1 in = 2.54 cm.
Harlamova29_29 [7]

Answer:

v=84.3\frac{ft}{s}

Explanation:

Hello,

In this case, given that 1 kilometer equals 1000 meters, 1 meter equals 3.281 feet and 1 hour equals 3600 seconds, the required velocity in feet per second turns out:

v=92.5\frac{km}{h}*\frac{1000m}{1km}  *\frac{3.281ft}{1m} *\frac{1h}{3600s}\\ \\v=84.3\frac{ft}{s}

Regards.

7 0
3 years ago
Please help I’ll give you guys brainiest!<br><br><br> Thank youuuuuuu :))
Nana76 [90]

Answer:

Balanced.

Explanation:

Both sides are pulling with equal force.

4 0
3 years ago
Read 2 more answers
I'm in a rush please help
Alexeev081 [22]

16) <

17) >

18) =

19) =

20) <

21) >

4 0
4 years ago
Other questions:
  • What are the properties of the alkali earth metals
    12·1 answer
  • 1-Propynyllithium reacts with (R,R)-2,3-dimethyloxacyclopropane in a stereoselective reaction. Draw a curved arrow mechanism and
    10·1 answer
  • I need help asap please i have this lab and the lab report is very difficult someone please help me
    10·1 answer
  • 1.5 mol of the complex substance carbon dioxide (CO2) is just a few oxygen atoms:
    7·1 answer
  • How do you make crack and what are its effects?
    8·1 answer
  • ASAP
    7·2 answers
  • What is the concentration in molL-1 of 20 mL of Na2CO3 solution that neutralises 15 mL of 1 M HCl solution?
    9·1 answer
  • Que es química y para que sirve
    5·1 answer
  • Circle the term that best completes the following sentences.
    6·1 answer
  • The purpose of this guide is to help you write a clear and concise report that summarizes the lab I just completed. This lab sho
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!