- 8/11×3/4=?

Discover Questions

Given that the half-life of 238U is 4.51 × 109 years, determine the age of rock found to contain 1.96 g of 238U and 0.06 g of 206Pb.? Is NaHCO3 solution a heterogeneous or homogeneous mixture? Which of the following statements is true?
a.
sin 30° = cos 30°
b.
sin 35° = cos 55°
c.
sin 60° = cos 60°
d.
sin 55° = cos 25°? How big is 9 sq inches? How many moles of each atom would you have in one mole of aluminum carbonate?