How many moles of sodium are required to produce 40. grams of NaOH? *

2Na + 2H20 (arrow) 2NaOH + H2

.25 moles

.50 moles

1.0 mole

2.0 moles

An element's identity can be determined from its

Cu + 2AgNO3 + Cu (NO3) 2 + 2Ag How many grams of Cu react with 105.2 g of Ag?

What can cause long-term environmental changes by blowing dust and gases into the sky?

What is surface tension

What are the correct formulas for copper (ii) nitrate hexahydrate and lithium chromate dihydrate?

A rigid cylinder with a movable piston contains a 2.0-liter sample of neon gas at STP. What is the volume of this sample when it's temperature is increased to 30 degrees Celsius while its pressure is decreased to 90 kilopascal

Write a speech aimed at year 7 to explain why some metals lose their shine over time but gold does not.

How many moles of co2 could fit in a 475 ml bag at - 22c and 1.125 atm?

How mant atoms are in 3N2

The type of nuclear decay an unstable nucleus will undergo depends on its ratio of neutrons to protons. The radioisotope cobalt-65 has a ratio of neutrons to protons of 1.41, which is too high for a nucleus of this size.