How many ammonium ions and how many sulfate ions are present in an 0.250 mol sample of (nh42so4?

In an endothermic reaction, heat is absorbed from the surroundings. How does this affect entropy? A. The particles in the surroundings move slower and have decreased entropy. B.

According to the law of conservation of, the number of atoms in the products of a chemical reaction must be balanced with the number of atoms in the reactants.

Which of the following are the products of a homolytic cleavage of a C-C bond of ethane? a. 2CH3 b. CH3+CH3 c. H+CH2H3 d. CH3

Which is better solvent: water or carbon tetrachloride?

The given potentials are observed for a calomel electrode: E ° = 0.268 V and E (saturated KCl) = 0.241 V. Use this information to predict the value of E for a silver-silver chloride electrode saturated with KCl.

Why does an apple fall toward the earth, instead of the earth moving toward the apple?

If the moles and temperature of a gas are held constant, the pressure of a gas doubles when: Volume is halved Volume is quadrupled Volume is doubled Volume is also held constant

The life function of transport in an organism directly involves those activities used to 1. absorb and distribute materials 2. obtain and hydrolyze materials 3. release energy from food 4. produce cellular waste product

What is the orbital diagram for phosphorus

The atoms of gaseous helium are