A weather station record the wind is blowing from the Northeast at 12 kilometers/h statement explains why Northeast at 12 kilometer / h is a vector

Gaseous ethane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water. Suppose 7.22 g of ethane is mixed with 15. g of oxygen. Calculate the minimum mass of ethane that could be left over by the chemical reaction.

Which of the following is not the same as 8,540 centigrams? 0.0854 kg 85.4 g 8.54 hg 85,400 mg

The element rubidium has two naturally occurring isotopes. The atomic mass of 85Rb (72.17 percent abundant) is 84.911794 amu. Determine the atomic mass of 87Rb (27.83 percent abundant). The average atomic mass of Rb is 85.4678 amu.

Under certain conditions the rate of this reaction is zero order in dinitrogen monoxide with a rate constant of 0.0067·Ms-1: 2N2O (g) →2N2 (g) + O2 (g) Suppose a 4.0L ⁢ flask is charged under these conditions with 300. mmol of dinitrogen monoxide.

Atoms and bonds are often represented in chemical structures by balls and sticks, but like organelles, are more complex than they are often represented. Later, you'll learn about bonds. For now, you'll explore what an atom is.

How does the size of ions affect the conductivity of a solution?

How to write complete ionic and net ionic equations?

chromium can combine with chlorine to from corneum chloride which equation is a correct representation of this reaction

What is the atomic weight of a hypothetical element consisting of two isotopes, one with mass = 64.23 amu (26.0%), and one with mass = 65.32 amu? (a) 65.3 amu (b) 64.4 amu (c) 64.9 amu (d) 65.0 amu (e) 64.8 amu

Is this base a physical or chemical property?