What do u know about a gas's molecules

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.