How many particles are there in 2.45 moles of Copper II Nitrate? How many particles are there in 0.5 moles of hydrogen peroxide?

Determine the number of atoms in 22g NH3

Determine the number of molecules in 45.5g butane C3H8

How many grams are there in 7.03 x 10^25 molecules of water?

The gram formula mass is calculated by adding the masses of elements found in the formula is this true or false

To calculate the number of particles in a compound you divide 6.02 x 10^23 is this true or false

What is a mole?

Think about how you can use le chatelier’s principle to find possible solutions to the design problem. describe at least two ways to increase the yield (amount) of ammonia based on this principle.

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size