URGENT
The equation H3PO4+3KOH -> K3PO4+3H20 is an example of which type of reaction?

(A) Double Replacement
(B) Decomposition
(C) combination
(D) Single Replacement

5. how can you decrease the pressure of a gas in a container without changing the volume of the gas?

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

How many atoms are there in 5.70 mol of mg