SI unites are based on multiplying or dividing by 10, 100, 1,000, 10,000 (and so on...) depending on the unit you're solving for.
C. Biomass is the correct answer
Molarity is defined as the number of moles of solute in 1 L of solution
molar mass of Ni(NO₃)₂ - 182.7 g/mol
number of moles of Ni(NO₃)₂ - 5.80 g/ 182.7 g/mol = 0.0317 mol
number of moles in 500 mL - 0.0317 mol
therefore number of moles in 1000 mL - 0.0317 mol / 500 mL x 1000 mL/L
molarity of the solution is - 0.0634 M
Answer:
1) BaCl2+K2So4 → BaSo4+ KCl
2) Zn+AgNO3 → Zn+NO3+Ag
This is because of Gravity. Your muscles or your entire body is at ease or whatever because the moon has more mass than earth.