Answer:
Just add what they equal to hope this helps :)
Explanation:
C. Ca and Br because they're metals and nonmetals
2mm=2,000,000 nm
2,000,000/25=80,000
The answer is 80,000 polio viruses
Initial concentration of magnesium nitrate M1 = 2.13 M
Initial volume of magnesium nitrate, MgNO3 V1 = 1.24 L
Final concentration of MgNO3, M2 = 1.60 M
Let the final volume of MgNO3 upon dilution be V2
Formula to use:
M1*V1 = M2*V2
V2 = M1*V1/M2
= 2.13 M * 1.24 L/1.60 M = 1.65 L
Thus, the final volume of magnesium nitrate solution upon dilution is 1.65 L
Answer: I believe the answer is 12
Explanation:
