A sample of calcium oxide (CaO) has a mass of 2.80 g. The molar mass of CaO is 56.08 g/mol. How many moles of CaO does this sample contain?

At stp how many liters of nh3 can be produced from the reaction of 6.00 mol of n2 with 6.00 mol of h2?

The separation of ions that occurs when an ionic compound dissolved is called

Explain how index minerals allow scientists to understandthe history of a metamorphic rock

Correct name for the compound containing potassium and sulfur

4nh3+5o2-->4no+6h20 What is the total number of moles of h2o produced when 12 mole of nh3 is completely consumed?

What does pH measure? number of hydrogen atoms in an acid number of hydroxide atoms in a base concentration of hydrogen ions in solution concentration of hydroxide ions in solution

Based on charles's law, which of the following statements is true for an ideal has at a constant pressure and mole amount? A. The number of collisions is independent of volume B. The number of collisions decreases with increase in volume C.

50. mL of water is initially 70. k and cooled to 25. k. What is the thermal energy?

Which of the following statements is true about both nuclear fusion and nuclear fission? They occur in the sun. Heavy atoms are split. Two light nuclei combine. Some mass changes into energy.

What does the name iron (II) in a compound indicate about the cation? A an 11 + charge B a 2 - charge C a 2 + charge