1. crystals of ammonium chloride, nh4cl, seem to disappear when mixed with water. the resulting clear liquid containing ammonium chloride and water is a
a) compound.
b) new substance.
c) homogeneous mixture.
d) heterogeneous mixture.

2. which term is synonymous with solution?
a) solvent
b) aqueous
c) homogeneous mixture
d) heterogeneous mixture

If you burn 10 kilograms of wood in a fire (combustion) what is the weight of the products after the fire has finished burning the wood?

Asample of air with a volume of 2.20m3 at a pressure of 105 kpa and a temperature of 30c is cooled to 10c and the pressure is reduced to 75.0 kpa. what is the new volume? 6.9 1.34 2.56 43.0 2.88

Which of the following statements about hybrid orbitals is or are true? choose all that apply. choose all that apply. under sp2 hybridization, the large lobes point to the vertices of an equilateral triangle. after an atom undergoes sp hybridization there is one unhybridized p orbital on the atom. the angle between the large lobes of sp3 hybrids is 109.5∘