What is the molar mass of cholesterol?

When carbon forms single covalent bonds with four other atoms the atoms joined to the carbon form a?

1. How many moles in 560 grams of ammonia, NH3? 66 33 99 16.5

Substance A and B are the same mass and at the same initial temperature. When the same amount of heat is added to each, the final temperature of A is 75 degrees Celsius and B is 35 degrees Celsius.

At standard pressure which substance becomes less soluble as temperature increases from 10. °c to 80.°c

What element in the 3rd period will form an ionic compound with a 1:1 atom ratio with magnesium?

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