Which is an acid-conjugate base pair?

Which of following is harmful to the ozone layer by decomposing O3 to O2? carbon dioxide sulfur dioxide greenhouse gases chlorofluorocarbons

What does pressure measure A. The temperature of a substance B. The number of molecules present C. The force of colliding particles D. The volume occupied by particles

Fires in forests can sometimes be stopped by cutting down trees to make a gap (called a 'fire break'). Which part of the fire triangle does this remove?

Choose the correct statement. The cathode is the electrode where the oxidation takes place. Both oxidation and reduction may take place at the cathode, depending on the cell. The cathode is always positive. The anode is always negative.

Alcoholic beverages contain

A gas occupies a 1.5 L container at 25 degrees Celsius and 2.0 atm. If the gas is transferred to a 3.0 L container at the same temperature, what will be its new pressure? a) 3.0 atm b) 2.0 atm c) 1.0 atm d) 4.0 atm

The maximum amount of n2h4 (hydrazine) that can be prepared from 14 grams of nitrogen and 28 grams of hydrogen by the reaction n2 + 2 h2 = n2h4 is?

The molecules of a substance are moving rapidly in a container. The molecules do not interact with each other. If the container is opened, the molecules will escape from the container.

Why is fluorine a gas?

What is the empirical formula for a compound if a sample contains 3.72g of p and 21.28g of cl?-pcl5-pcl3-p2cl10-p2cl5