Why when we mix vinegar and baking soda the reaction between the two causes temperature drops, and why does one type of vinegar have more of a temperature drop than the other?

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

Identify and describe the three ways that mutations affect organisms.

How will the volume of a gas be affected if the pressure is tripled, but the temperature remains the same?