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pickupchik [31]
3 years ago
9

Balanceo de k20 + H3BO3​

Chemistry
1 answer:
kipiarov [429]3 years ago
5 0
Whats your question? id love to help but I’m not sure I understand
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PLEASE HELP this is physical science.
Andru [333]

Bone age : 22,920 years

<h3>Further explanation</h3>

Given

Nt = 2.5 g C-14

No = 40 g

half-life = 5730 years

Required

time of decay

Solution

General formulas used in decay:  

\large{\boxed{\bold{N_t=N_0(\dfrac{1}{2})^{t/t\frac{1}{2} }}}

t = duration of decay  

t 1/2 = half-life  

N₀ = the number of initial radioactive atoms  

Nt = the number of radioactive atoms left after decaying during T time  

Input the value :

\tt 2.5=40.\dfrac{1}{2}^{t/5730}\\\\\dfrac{2.5}{40}=\dfrac{1}{2}^{t/5730}\\\\(\dfrac{1}{2})^4=\dfrac{1}{2}^{t/5730}\\\\4=t/5730\rightarrow t=22920~years

6 0
3 years ago
The star Antares has a mass of 3.08 x 1031 kg.<br> How might this star be classified?
MatroZZZ [7]
A red super giant hope that helps
     

6 0
3 years ago
Read 2 more answers
why can scientists ignore the forces of attraction between particles in a gas under ordinary conditions
Galina-37 [17]
The forces of attraction between particles in their gaseous state seems to be nonexistential.
therefore scientist would care less. however another state after gas which is plasma has a lesser force of attraction than the gaseous state.
8 0
3 years ago
Photosynthesis takes carbon dioxide, water, and sunshine and turns them into____?
RUDIKE [14]
Photosynthesis  takes  carbon dioxide, water and  sunshine  and  turn  them into   glucose  and oxygen

      Explanation
Glucose  is the principal  carbohydrate formed  through  photosynthesis,  Through the process  of  photosynthesis  sunshine, carbon  dioxide  and   water  to  form glucose  and   oxygen

 
Equation for   reaction  is  as follows

CO2+ H2O +  light  energy 
→  C6H12O6 +O2

C6H12O6   is  the  glucose

 
3 0
3 years ago
A friend says that temperature increases an altitude increases because you're moving closer to the sun is this true explain
Salsk061 [2.6K]
No, because the sun stays in the same exact place all of the time
4 0
3 years ago
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