If you had 40 molecules of co gas in 250000 molecules of air, what is the concentration of co in parts per million?

How many different kinds of monomers are there in starch?

What volume of 12.0 m hcl (aq) is required to make 75.0 ml of 3.50m hcl (aq) ?

In adding and subtracting you use the least number of decimal place. 12.008+3.18

What is the molality of solid solder wire if it is made from 68.7 g of lead dissolved in 117 g of tin?

Which answer below correctly identifies the type of change and the explanation for the mixture of calcium corbonate and hydrochloric acid?

What is the effect on vapor pressure of a solution with particularly strong solute-solvent interactions? With particularly weak solute-solvent interactions?

What is the mass of 3.62X10^24 molecules of methanol

Which elements are correctly listed in order of increasing ionization energy? 1. o < f < ne 2. o < s < se 3. n < p < as 4. c < n < o 5. n < o < f?

Which of the following is not a drawback of using lithium batteries? A. Lithium's reactivity can cause explosions. B. Lithium batteries require the use of toxic materials. C. Lithium is more easily oxidized than any other metal. D.

Considering the concept of surface area affecting the rate of reaction, explain why grain storage silos sometimes explode spectacularly?