What volume would 2.25 moles of Ne has occupy at stp?

Because all the atoms are still present after a chemical change one can conclude that

What is the mass of 1.450 mol Cd3N2? 124.2 g 234.7 g 529.6 g 738.9 g

56. In the periodic table, how many elements are found in each of the following? a. the halogen family b. the alkali family c. the lanthanide series d. transition metals

Assuming the amount of gas remains the same, what happens to the pressure if the temperature increases and volume decrease?

Identify the group of elements that corresponds to each of the following generalized electron configurations and indicate the number of unpaired electrons for each: (a) [Noble gas] ns^2 np^5 (b) [noble gas] ns^2 (n-1) d^2 (c) [noble gas] ns^2 (n-1)

Determine the number of atoms in 1.75 ml of mercury. (the density of mercury is 13.5 g/ml.)

In the reaction A + B + C >> D, what are the products? A. C and D B. A and B C. A, B, C, and D D. A and C

Which of the following is true of a person with a high credit score?

What is an example of making a qualified observation

With respect to composition, how is the compound made from hydrogen and oxygen different from mixtures of these two elements?