What is the molecular geometry, or shape, of phosphorus trichloride (PC13) ?

A.

tetrahedral

B.

linear

c.

trigonal pyramidal

D.

trigonal bipyramidal

When did aristarchus of samos propose his heliocentric model?

The first order rate constant for the conversion of cyclobutane to ethylene at 1000.°C is 87 1/s. Cyclobutane â 2 ethylene (a) what is the half-life of this reaction at 1000.°C (b) If you started with 4.

If the same materials are used to build a voltaic cell and an electrolytic cell, how would the chemical reactions compare?

Lights that are placed one after another in one closed path form a

What is the function of a coromosome

Write a balanced chemical equation for the complete combustion of C3H7BO3, a gasoline additive. The products of combustion are CO2 (g), H2O (g), and B2O3 (s).

Which of the following polymers is used in plastic bottles and plastic containers? Select one: a. LDPE b. PVC c. Polystyrene d. HDPE e. Polypropylene

Which of the following statement is not true? A) The sun is involved in producing tides B) There can be two high tides in one location during a single day C) Only the oceans have tides D) If there is a high tide, there will be a low tide

A solution which has a concentration that exceeds its predicted solubility at a certain temperature and pressure would be -

Convert 4.992*1010 g to each of the following units. B. Mg c. mg D. metric tons