How many times do we fart a day

What is a the partial pressure of helium gas in a closed system containing 0.775 mol of helium gas, 1.12 mol of methane gas, and 0.592 mol of hydrogen gas? The system containing the three gases has a total pressure of 1.50 atm.

What group of elements is the least reactive? A. halogen B. alkali metals C. Noble gases D. Semiconductor

Is Cs2O2 a ionic compound, Covalent compound, or Acid

0.01 mole nitrogen gas (Na2)

When are drops of indicator most likely added to the Erlenmeyer flask? A. when preparing the burette B. when filling the pipette with acid C. when recording the initial burette volume D. when preparing to measure pH change

When h + forms a bottle of h2o to form the hydronium ion h3o plus this bond is called a coordinate covalent bond because?

The temperature program for a separation starts at a temperature of 50 °C and ramps the temperature up to 270 °C at a rate of 10 °C/minute.

Why are scientific explanations subject to change? A) Scientists always need better technology. B) Scientific explanations are only a best guess. C) New scientific explanations are always better than old explanations.

The solid above sink to the bottom when you put a container filled with it what does that tell you about density

What has more mass a whole sponge or that same sponge broken into tiny pieces