Calculate the frequency of blue light of wavelength 4.5x10^2 nm

Write each element and elements of atoms of the compound Na2PO3F

Which of the following is NOT a characteristic of sedimentary rocks?

Which of the following are properties of hydrocarbons? (A) hydrophilic, good source of stored energy, nonpolar. (B) hydrophilic, polar, consisting primarily of carbon, hydrogen. (C) hydrophobic, containing many hydroxide groups, polar.

How many moles of water are produced in this reaction?

Why do two weak conductors equal a strong conductor?

Which of the following would be a result of increased solar activity? A. Longer winters B. Warmer-than-normal sea surface temperatures C. Colder-than-normal sea surface temperatures D. Shorter summers

The electron configuration of an element is 1s22s22p63s23p64s1. why is this a representative element?

Why is scientific notation important in chemistry?

During translation, the new polypeptides are often directed to specific parts of the cell by the presence or absence of short sequences of amino acids called signal sequences.

Is potassium iodide an electrolyte or nonelectrolyte?