What is an everyday example of force-at-a-distance?

In a laboratory experiment, after purification, 4.567 g of nickel metal was obtained by a student. The student then calculated, based on the amount of reactants used, that 5.731 g were possible. What is the student's percent yield?

Why does a beta particle have an atomic number of - 1

Are protons and neutrons electrically charged

Which of these equations is balanced? (neither and both are an option) a. 3 H2SO4 + 2Al → Al2 (SO4) 3 + 3H2 b. 2KCl + Pb (NO3) 2 → 2KNO3 + PbCl2

Accuracy is defined as how close a measured value comes to a fixed value core value true value the measured values are to one another Precision is defined as how accurate common O reproducible

Why it is important to learn about elements, compound, and mixture?

Sodium borohydride is stable in acidic aqueous solutions. True or False

Assume at exactly 100.0°c and 1.00 atm total pressure, 1.00 mole of liquid water and 1.00 mole of water vapor occupy 18.80 ml and 30.62 l, respectively.

The time it takes to run a kilometer depends on the amount of exercise a person gets. What is the independent variable? -person running -time to run a kilometer -running -the amount of exercise

Calculate the molar mass of a gas if an 8.06*10 (to the power of - 2) gram sample of it occupies. 0650 L at 547°C and 70.5 kPa