Use the conversion factor 1 amu = 1.66054 * 10-24 g to answer the following questions. a) 1.67 x 10-24 g of neurons is how many (amu)

As you move from what to what on the periodic table, the atomic radius of the atoms increase

Which of the following statements is an inference? A. She counts the robins in her yard once a week for two years. B. She thinks some robins must migrate in the winter. C. student notices that there are fewer robins in her yard during the winter. D.

When an atom gains an electron to become an ion what happens to its size?

How many moles of O2 should be supplied to burn 1 mol of C3H8 (propane) molecules in a camping stove

If the symbol X represents a central atom, Y represents outer atoms, and Z represents lone pairs on the central atom, the structure Y---X---Y (2 lone pairs around X) could be abbreviated as XY2Z2. Classify these structures according to their shape.

Why do cells have a plasma membrane? A. to separate protein from the nucleus B. to distinguish plants from animals C. to define the size of the cell D. to separate the inside of the cell from its enviroment

Base on its molecular mass, what is the molar mass of iron

For the following reaction in aqueous solution, identify all those species that will be spectator ions. Select all that apply. Na, SO4+Hg (NO3) 2HSO4+2NaNO3 Choose one or more: A. Hg2S04 B. Na2S04 C. Nat D. NO3 E. SO42- F. Hg2 (NO3) 2 G. NaNO3 H.

One mole of which hydrocarbon requires 8 mol o2 to achieve complete combustion to give carbon dioxide and water?

How many bromine atoms are present in 39.9 g of CH2Br2