Why are atoms always neutral

The action of some commercial drain cleaners is based on the following reaction: 2 NaOH (s) + 2 Al (s) + 6 H2O (l) ? 2 NaAl (OH) 4 (s) + 3 H2 (g) What is the volume of H2 gas formed at STP when 6.32 g of Al reacts with excess NaOH? A. 9.12 L B. 9.

Iron is obtained commercially by the reaction of hematite (Fe2O3) with carbon monoxide. How many grams of iron are produced if 13.0 moles of hematite react with 38.0 moles of carbon monoxide?

What volume in L of a 0.375 M solution of NaOH is needed to provide 15.3 g NaOH?

Acid mine drainage results from acidic water formed belowground that makes its way to the surface; the acidic water is formed as a result of the flooding of abandoned mines where the underground watera) reacts with a type of rock, pyrite, which

If the relative humidity is high and the temperature drops, water vapor may

As the average kinetic energy of the particles in a gas increases, which of the following occurs? The temperature of the gas increases. The temperature of the gas decreases. The number of particles increases. The number of particles decreases.

What is the type of strong chemical bond between carbon, hydrogen, and oxygen atoms in a single organic molecule?

0.100 mol of CaCO3 and 0.100 mol CaO are placed in an 10.0 L evacuated container and heated to 385 K. When equilibrium is reached the pressure of CO2 is 0.220 atm. 0.

What is true about the charges of transition metal ions?

A gas obeys the ideal-gas equation of state P V = N k T, where N = n NA is the number of molecules in the volume V at pressure P and temperature T and n is the number of gm-moles of the gas.