Why does reducing solute particle size increase the speed at which the solute dissolves in water?
O A. It exposes more of the solute to the water molecules.
B. It makes the temperature of the water significantly higher.
C. It raises the pressure of the water molecules on the solute.
D. It makes the water molecules move around faster.

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

In any energy conversion, some of the energy is lost to the environment as question 5 options: electrical energy potential energy sound energy thermal energy

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