What are the 20 elements of periodic table

Sally adds 3.13 moles of argon to a 5.29 liter balloon that already contained 2.51 moles of argon. What is the volume of the balloon after the addition of the extra gas?

The energy transferred between samples of matter because of a difference in their temperatures is called a. heat. b. thermochemistry c. chemical kinetics. d. temperature.

Which of the following are likely to form a covakent bond

The diagram below shows a cell placed in a solution. What will happen to the cell?

Which situations make use of interactive multimedia and which do not? Amelia is exploring a shopping website looking for clothes or accessories she could give to her sister.

How many moles of co2 are produced when 10 mol of propane (c3h8) is burned in excess oxygen?

Why are the spheres representing nitrogen and oxygen different colors

How many moles are in 16.94g of water?

Two compound samples are found to have the same mass percentages of the same elements. what can you conclude about the two samples

Sodium hypochlorite (Na xCl yO z) is the active ingredient in household bleach. A 250.0 g sample of sodium hypochlorite contains 77.2 g sodium, 119.1 g chlorine, and the remainder is oxygen. Calculate the empirical formula of sodium hypochlorite.