Convert 50.0 years into seconds. Express your answer in scientific notation.

In the lab you react 2.0 g of Na2CO3 with enough CaCl2. According to the reaction Na2CO3 + CaCl2 - > CaCO3 + 2NaCl How much CaCO3 will you produce?

What state of matter has a definite volume but no definite shape

Determine the celsius temperature of 2.49 mol of gas contained in a 1.00 l vessel

Bond formed when electrons are shared between atoms?

How many eggs are present in one mole of eggs?

The temperature of a sample of liquid water changes from 50°C to 30°C. Which statement best explains the change that must happen at the molecular level? A. The molecules move more quickly and their average kinetic energy increases. B.

The most important reason why solid sodium hydroxide is not used as a primary standard is

plate a and plate b are both continental plates. what is ghe most likely result if the two plates collide?

According to the second law of thermodynamics, the entropy of any system always increases. According to the second law of thermodynamics, the entropy of any system always increases. True False

If the density of Cu is 8.96g/cm cubed, what is the volume of 28kg of Cu?