Answer:
0
Explanation:
Given parameters:
Half-life = 8.08days
Unknown:
What fraction is left unchanged after 16.16days = ?
Solution:
The half - life of a substance is the time taken for the half of a radioactive material to decay to half.
Day 0 Day 8.08 Day 16.16
100% 50% 0% Parent
0% 50% 100% Daughter
After 16.16 days, non of the original sample will remain unchanged.
Answer:
12.5??
di ako sure sana makatulong
Answer:
Current
Explanation:
An electric fence used to contain cattle works by transmitting energy through a conductor creating an electric current.
An electric fence is usually connected to an electric power source . The connection brings about the flow of electric charges(current) which is aided by the presence of a conductor. The conductor ensures smooth flow of electric current to achieve the main purpose of the fence.
What chemical reaction??? Very vague
(a) benzene (C6H6) - <span>nonpolar molecules . Only dispersion forces are present.
</span>
(b) CH3Cl - <span>Chloroform ; polar molecules. Both dispersion and dipole-dipole forces are
present.
</span>
(c) PF3 - <span>Phosphorus triflouride ; has polar bonds but has nonpolar molecule due to its symmetrical structure. Only dispersion forces are present.
</span><span>
(d) NaCl - </span><span>Sodium chloride ; ionic compound. Both ion-ion and dispersion forces are present.</span><span>
(e) CS2 - </span><span>Carbon disulfide ; nonpolar molecules. Only dispersion forces are present.</span>
