Check the statement(s) that is(are) true. Check All That Apply An excited atom can return to its ground state by absorbing electromagnetic radiation. An excited atom can return to its ground state by absorbing electromagnetic radiation. The energy of an atom is increased when electromagnetic radiation is emitted from it. The energy of an atom is increased when electromagnetic radiation is emitted from it. The energy of electromagnetic radiation increases as its frequency increases. The energy of electromagnetic radiation increases as its frequency increases. Niels Bohr quantized electromagnetic radiation. Niels Bohr quantized electromagnetic radiation. Red light is more energetic than blue light. Red light is more energetic than blue light. The frequency and wavelength of electromagnetic radiation are inversely proportional. The frequency and wavelength of electromagnetic radiation are inversely proportional.

What pressure will be exerted by 0.675 moles of a gas at 25*c if it is in a 0.750-l container?

Which of the following describes a situation where competition between producers exists

Is a measure of the resistance to flow. a high liquid has a high resistance to flow and flows slowly. the ancients thought everything in the world was made of 4 we now know that there are 94 naturally occurring and scientists have created another 24 i am certain they will create even more. honey flows slowly because it has a high to flowing. a can be separated by physical means because it contains more than one pure substance and 2 pure substances are not chemically bonded to each other. a cannot be separated by physical means. all matter is made up of all elements are with the same number of protons. if it is just a single or many bonded together, if all of them have the same number of protons, it is an element. in a piece of pure iron metal, all the are joined together, that piece of iron metal is called elemental iron. a single of iron is called elemental iron. a mixture has differences from place to place. we might need a microscope to see them or they might be obvious to the unaided eye. there are surfaces separating it into different phases. a mixture is the same everywhere. it is uniform. there are no surfaces separating it into different phases. if different kinds of atoms (different elements) are bonded together by their electrons, it is called a there are physical means of to isolate the different pure substances in a mixture and there are chemical means of to isolate the different elements in a compound. 1. element 2. compound 3. mixture 4. heterogeneous 5. homogeneous 6. pure substance 7. atoms 8. separation 9. viscosity 10. resistance