Recent content by projects2k

A student was given a solid for an unknown. Its melting point range was 119-121 degrees Celsius. The student has previously worked with benzoic acid, and has observed that it was a white crystalline solid with a melting point of 122 degree Celsius. a) Can the student conclude that the unknown...

Can someone please help me with my Physics problem? 1. Which of the following equations is dimensionally consistent? a.) x = vt + ½ at b.) x = vt + ½ at2 c.) v = ½ at2 d.) v = at + ½ at3 e.) x2 = 2a(v-v0)t Can someone please explain each answer in detail and tell me why the answer is b. I am...

____4. What are the correct symbols for the elements (1) copper and (2) cobalt?

thanks a lot? metallic iron crystallizes in a body centered cubic lattice. The density of iron is 7.87 g/cm³. Calculate the edge length of the cubic cell in pm.