a gold fish swimming in a pool near the bottom releases a bubble. the bubble at that depth is pressurized at 1.38 atm with a temperature of 21.0 degrees celsius and a volume of 8.60x10-4L. how many moles of gas are in the bubble

Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.

What type of organic molecule comprises the majority of a potato?

A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.