What volume would 2.5 x E25 particles of nitrogen gas occupy?

Calculate the number of atoms in 23 g of sodium (Na).

Which of these is an example of a chemical change? A fireworks exploding B grinding powder C melting cheese D ironing a shirt

What volume does 14 mol of gas occupy at STP? Round to the nearest hundredth.

Sara's mom takes the parkway to work. It takes her 30 minutes to travel from mile marker 88 where she enters to her exit at mile marker 121. What is her average speed? 4.0 mph 16.5 mph 33 mph 66 mph

Chromium occurs naturally as four isotopes: 50cr with a mass of 49.9460 amu, 52cr with a mass of 51.9405 amu, 53cr with a mass of 52.9407 amu, and 54cr with a mass of 53.9389 amu.

What is a scientific variable

What kind of reactions are redox reactions a. reactions involving substituting different isotopes b. reactions involving losing and gaining electrons c. reactions involving protons transferring between atoms d.

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?