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
Oxana [17]
3 years ago
11

How much time would it take for 5.2 x 10^5 atoms of fermium-253 (half-life 3 days) to decay to 6.5 x 104 atoms?

Chemistry
1 answer:
Jlenok [28]3 years ago
4 0

Answer:

9 days, or 3 half-lives

Explanation:

5.2x10^5=520000

6.5x10^4=65000

65000/520000=1/8, or 3 half-lives

3x3=9 days

I'm not the greatest at Chem but this seems more like math than Chem :)

You might be interested in
For a particular isomer of C8H18, the combustion reaction produces 5104.1 kJ of heat per mole of C8H18(g) consumed, under standa
Vladimir79 [104]

Answer:

Explanation:

Hello,

Considering the chemical reaction, the enthalpy of reaction is given by:

ΔH°rxn=ΔfHCO2+ΔfHH2O-ΔfHC8H18

(ΔfHO2=0)

Taking into account that the reaction produces energy, ΔH°rxn is negative. No, solving for ΔfHC8H18:

ΔfHC8H18=-ΔH°rxn+8*ΔfHCO2+9*ΔfHH2O

ΔfHC8H18=-(-5104.1 kJ/mol)+9*(-292.74kJ/mol)+8*(-393.5 kJ/mol)

ΔfHC8H18=-678.56 kJ/mol

Best regards.

3 0
3 years ago
Which equation is used to calculate the specific heat of the metal?
algol [13]

i dont know gjchhhhhhhhhhhhhhhhhhhhhhhhh

3 0
4 years ago
A substance that does not allow x-rays to pass through is described as being
horsena [70]

A substance that is impenetrable by x-rays is described as being radiopaque.

Radiopaque substances will not allow x-rays and or other forms of radiations to pass through them.

Instead, they absorb or block the rays and when used in radiology, they appear white or light gray on photographic films.

Radiopaque materials are applied in generating ultrasound images and other forms of clinical procedures.

More on radiopaque materials can be found here: brainly.com/question/10583205?referrer=searchResults

8 0
2 years ago
The Venus flytrap is a plant that lives in wetland ecosystems that do not have nitrogen-rich soils. To make up for the lack of n
viva [34]
Canivorous plants is the correct answer for your question
6 0
3 years ago
What is the atomic number, mass number, element symbol, group number, and period number for oxygen?
yawa3891 [41]

Answer:

Atomic no. = 8

Mass no. = 16

Period no. = 2

Group no. = 6

4 0
3 years ago
Other questions:
  • A chemist working as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the door of the cabinet says the ca
    12·1 answer
  • How can you tell if a chemical reaction has occurred?
    8·1 answer
  • The molar heat capacity for carbon monoxide at constant volume is CV,m = 20.17 J/(K·mol). A 3.00-L fixed-volume flask contains C
    8·1 answer
  • the volume of a gas is 250mL at 340.0kPa pressure. what will the volume be when the pressure is reduced to 50.0kPa assuming the
    7·1 answer
  • 10) What is the energy of a photon whose frequency is 2.7 X 1014 Hz?
    8·1 answer
  • If 80.0 grams of oxygen gas is consumed with a stoichiometric equivalent of aluminum metal, how many grams of aluminum oxide (mo
    11·1 answer
  • On the lewis dot diagram What element reacts simiar to clorine
    14·1 answer
  • What is produced during the replacement reaction of Cu(NO3) and zn
    10·2 answers
  • PLEASE HELP BRAINLIEST 4 BEST ANSWER
    10·2 answers
  • Nuclei<br> 10. Nuclear power plants release energy by
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!