What is the first state of matter

What’s the percent by mass of carbon in c10h14n2

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

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0