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D) An amorphous strong is composed of atoms or molecules with a majority of its quantity empty. E) All of the above statements are TRUE. Dalton’s Atomic Theory states A) that each one parts have a quantity of isotopes. B) that matter is composed of small indestructible particles. C) that the properties of matter are decided by the properties of atoms. D) that vitality is neither created nor destroyed throughout a chemical reaction.

The number of cycles that cross via a stationary point is recognized as A) wavelength. The vertical height of a wave is called A) wavelength. Which of the following are examples of physical change? A) Powdered fruit drink is dissolved in water. E) All of these are examples of physical change. Osteoporosis is a situation by which the bone density becomes low.

It is the quantum of the electromagnetic field including electromagnetic radiation such as light and radio waves. 25) Which of the following what command should you use to rearrange parts of files on the drive so they are contiguous statements is TRUE? A) An ionic bond is much stronger than most covalent bonds. B) An ionic bond is fashioned by way of the sharing of electrons.

One molecule necessary to human imaginative and prescient is identified as 11-c is-retinal. The molecule changes conformation when struck with light of adequate vitality (163 kJ/mol or greater). Calculate the longest wavelength visible to the human eye. A green leaf has a surface space of 2.50 cm2. If photo voltaic radiation is a thousand W/m2, how many photons strike the leaf every second?

81) Which of the following quantum numbers describes the size and vitality of an orbital? A) magnetic quantum number B) principal quantum number C) angular m… Light from three different lasers , each with a unique wavelength, was shined onto the same metal surface.