An unknown gas effuses at a rate 0.797 times that of nitrogen at the same temperature. what is the molar mass of the unknown gas?

Why might it be important in a real life situation, to know if a chemical or physical change occurred?

What is the formula for fluorosis acid

The burning of methane gas, given below, is a redox reaction. which part of the reaction illustrates oxidation?

nonrenewable resources exist in a fixed amount and can only be replaced by processes that take millions of years agree or disagree explain why

Which property of matter is conserved in chemical reactions and shown by balanced equations? mass volume density shape

Do substances have to be cold to freeze?

Which statement is true of the carbon atoms that make up a diamond? A. They can slip past one another slowly. B. They are always vibrating in place. C. They vibrate only when they are heated. D. They are locked in place and do not move at all.

A 48.3 mL sample of gas in a cylinder is warmed from 22 C, 87 C to 0.0 C what is the final temperature

Titration of 25.00 ml of an unknown hcl solution with 0.1550 m naoh starts at a buret reading for naoh of 0.33 ml. the phenolphthalein indicator turns light pink in the acid solution for over 30 seconds at a buret reading of 24.19 ml.

To what volume should you dilute 70 mL of a 10.0 MH2SO4 solution to obtain a 1.70 MH2SO4 solution?