Which of the following has the greatest mass, in grams?

a. 1 atom of lead (Pb)

b. 0.5 mol copper (Cu) atoms

c. 0.3 mol gold (Au) atoms

d. 25 atoms of mercury (Hg)

Q: A: A light bulb, a fan, and a tiny speaker are connected to a battery in a series circuit. How will the circuit behave if it is open?

Which of the following elements possesses an expanded octet? O Si Xe C

g In Part 7, the [Cl-] in saturated NaCl is 5.4 M at room temperature. Assume that you had 1.00 ml of the saturatedsolution, and that you added 0.50 ml of 12 M HCl. What is the [Cl-] after you added the HCl.

Ammonia (NH3) reacts with sulfuric acid to form ammonium sulfate. How many grams of ammonium sulfate are obtained from 8.73 g of ammonia, assuming a 73% yield of product?

What is the formula of nickel (ll) nitrate hexahydrate? (a) NiNO3.6H2O (b) Ni2NO3.6H2O (c) Ni (NO3) 2.6H2O (d) NiNO3.12H2O e) Ni (NO3) 2.12H2O

Determine whether each statement is a description of a physical property or a chemical property. Paper burns readily in air.

Cual es la función de los lípidos?

Butane - ethane - methane - propane: What do these hydrocarbons have in common? A) The same number of carbons present. B) They all have polar covalent bonds. C) They all have single covalent bonds. D) They have the same structural formulas.

Identify the form of energy that is converted into ther - mal energy by your body

Determine the number of moles of sulfur trioxide produced when 3.5 moles of oxygen gas is consumed in the reaction