marquetter1670 marquetter1670
  • 08-05-2024
  • Chemistry
contestada

A sample of a radioactive ore is found to contain 11.9 g and 30.9 g of the ore initially. If the half-life of the ore is x years, then the value of x is:
a) 20 years
b) 30 years
c) 40 years
d) 50 years

Respuesta :

Otras preguntas

twice the square of the number
English is not my native language. How can I test if my language skills are poggers?
Write the dirference between sl system and cgs system
The mass flow rate through a centrifugal compressor is 1 kg/s. If air enters at 1 bar and 288k and leaves at 200 kN/m² and 370k, determine the power of the comp
The coordinate grid shows the graph of four equations: Which set of equations has (3, 1) as its solution? A and B C and D B and D A and D
37. for the graph x= -3 please help
Beth has just received an inheritance of $500,000 and would like to be able to make quarterly withdrawals over the next 20 years. She decides on an annuity that
NO LINKS OR ANSWERING QUESTIONS YOU DON'T KNOW!!! Chapter 11aPlease SHOW YOUR WORK THOROUGHLY!! ​
VI. Complete the sentences with the passive form of the verbs In the box. 1. Lunar New Year ______________ in January or February. 2. The TajMahal _____________
which of the following is a function please help!!
good job