Answer:
it's A endothermic its when two objects rub each other to form heat this is also known as friction force
Richter Scale.
Hope this helps!
Answer:
0.0738 M
Explanation:
HNO3 +LiOH = LiNO3 + H2O
Number of moles HNO3 = number of moles LiOH
M(HNO3)*V(HNO3) = M(LiOH)*M(LiOH)
M(HNO3)*50.0mL = 0.100M*36.90 mL
M(HNO3) = 0.100*36.90/50.0 M = 0.0738 M
Density = Mass ÷ Volume
D= 30g ÷ 6 cm^3
D= 5 g/dm^3
