Gas A effuses 0.68 times faster than gas B. If the molar mass of gas B is 17 grams, what is the mass of gas A?

Arrange those element according to electronegative most to least electronegative. O, C, Ga, K, Cs

6. Which statement concerning proteins is not correct? a. Proteins are long, usually folded, chains. b. The shape of a protein molecule determines its function. C. Proteins can be broken down and used for energy. d.

Explain how mary would conduct a science experiment to test wheather plants need soil to grow.

Energy is just like any other chemical or physical process, where it cannot be created or destroyed. Which Law states this fact?

19. Condensation is the change from - has a definite volume but no definite shape. - to -

How many chromosomes would be in a sex cell of a Syrian hamster

if you pull a Tomac radius versus First ionisation Energy would the graph reveal a direct or inverse relationship

Which of the following bonds is the most polar in nature: (1) Cl2 (2) HCl (3) HBr (4) HI

Combustion analysis of a 13.42-g sample of the unknown organic compound (which contains only carbon, hydrogen, and oxygen) produced 36.86g CO2 and 10.06g H2O. The molar mass of estriol is 288.38g/mol.

What concept in Dalton's atomic theory has been modified? A. All matter is composed of atoms. B. Atoms of different elements have different properties and masses. C. Atoms can combine in chemical reactions. D. Atoms cannot be divided.