Discuss how the addition of a catalyst affects the amounts of products and reactants at equilibrium and the time it takes to reach equilibrium.

Two friends at different locations want to communicate with each other by sending low energy signals. which of the following methods can they use to communicate? a) produce x-rays using colliding electrons and send them to radios, which capture sound b) send messages using infrared radiation, which travel in the form of waves c) send radio waves through intervening media like radio and television d) produce sound waves using microwaves from heated objects

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?

Achemist has dissolved a certain substance in water. the chemist knows that more of the substance could be dissolved into the water before it stops dissolving. therefore