Radium-221 has a half-life of 30 s. how long will it take for 95% of a sample to decay
this would be 2.22 seconds
Answer:hydrogen(H) is 1 and helium(He) is 2
hydrogen is a nonmetal and helium is a nobel gas. hydrogen is found in group S and helium is found in group P
Explanation:hope this helps
Answer:
Explanation:
There are 2 NH4 in the equation therefore just multiply the molarity of the total solution by 2. Aaaaaaaaaaaaaaaaaaaaaaaaaaaand listen to "She Blinded Me With Science" by Thomas Dolby! ;)
All you need to now is that 1L = 1000
so
Mass of 3.00L of pure water = 3000
*1.03g/
=
3090gMass of 3.00L of whole blood = 3000
*1.05g/
=
3150gMass of 3.00L of seawater = 3000
*1.00g/
=
3000g