A cube of salt is crushed before being stirred into water.

Physical Change? Chemical Change? Both?

A polymer P is made up of two monodisperse fractions; fraction A with molecular weight of 1000 g/mole and fraction B with a molecular weight of 100,000 g/mole. The batch contains an equal mole fraction of each fraction.

The charge of B is + 3 and the charge of O is - 2. What is its formula? A) B3O2 B) B2O3 C) O2B3

Draw the structure of trans-6-bromo-3-heptene. be sure the stereochemistry is drawn clearly.

The ion [Co (NH3) 6]2+ isoctahedral and high spin. This complex is: A. paramagnetic, with 1 unpaired electron. B. paramagnetic, with 3 unpaired electrons. C. paramagnetic, with 4 unpaired electrons. D. paramagnetic, with 5 unpaired electrons. E.

What's a member of the boron family and the most abundant metal in the earths crust

What is the nearest star in Gemini

In order for a solute to dissolve in a solvent, what must be true?

Radiocarbon dating can be used to determine the age of A a sample less than a million years old B a sample less than 100,000 years old C a sample less than 50,000 years old - D a sample less than five million years old

How many electrons in an atom can have each of the following quantum number or sublevel designations? (a) 4p (b) n = 3, l = 1, m1 = + 1 (c) n = 5, l = 3

Could the two aqueous solutions be identified through a visual inspection? Explain.