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
Nonamiya [84]
3 years ago
9

How many half lives would pass if a mass of copper-66 decayed for 51 minutes? The half life of Cu-66 is 5.10 minutes.

Chemistry
1 answer:
Sveta_85 [38]3 years ago
4 0
Divide 51 by 5.1, it's 10 half lives
You might be interested in
why would you expect to see similar rocks and rock structures on two land masses that were connected at one time?
tangare [24]
If they were connected at one time than you would expect to find similar rock structures because they eroded, weathered, and we’re formed most likely at the same time out of the same material. So basically since they were near each other they were under the same or similar conditions.
3 0
3 years ago
How much would a 50-kg object weigh on Mercury (gravity on Mercury is 3.59 m/s2)?
Andreyy89
Gravitational<span> Acceleration or W=Mg so... Q1: W(earth)=</span>50, W(X)=500 ---> g(X)=10<span>*g(earth)=10*9.8=98 --> C is correct. Q2: </span>M<span>=W/g --> </span>M=735/9.8=75 ---> B is correct. Q3: W=Mg=50*3.59<span>=179.5 N ---> B is correct</span>
4 0
3 years ago
Someone please help me with this. Thanks!
stira [4]

Answer:

Kim kim kim kim kim ath marath enthe kantha

Explanation:

Ninn chumbenem enne thellerthii.

Nin vadabell enne shwasichu!

8 0
3 years ago
Which statement is a testable hypothesis?
Marta_Voda [28]
It is C that is the most testable hypotheses
3 0
3 years ago
Read 2 more answers
Measurements show that enthalpy of a mixture of gaseous reactants decreases by 228. kJ during a certain chemical reaction, which
Tcecarenko [31]
Total change in energy = Heat produced by system + work done on the system
= 228 - 55
= 173 kJ

Because this energy is released as heat, the reaction is exothermic.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Stephanie has been doing research on how petroleum is formed. She says that oxygen must be present while the tiny plants and ani
    12·2 answers
  • The mass of sample A is 100.0 g, then removed it from a graduated
    14·1 answer
  • Can you please answer questions regarding valence electrons?
    8·1 answer
  • How is dumping our waste different from dilution and dispersion?
    10·1 answer
  • What is the pressure of 0.60 moles of a gas if its volume is 10.0 liters at 35.0°C
    12·1 answer
  • The best description of the greenhouse effect is that it _______.
    9·1 answer
  • When a substance changes from gas to liquid at a temperature below its boiling point, ____ has taken place.
    13·1 answer
  • I don't know how to solve no 5 <br> And i really need it fast and in french
    11·1 answer
  • How many bonding electrons are drawn in NH4+1?
    8·1 answer
  • What type of atmospheric conditions does climate describe?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!