An element whose atoms have the electron configurations 2-8-18-1?

What is the most threatening, long term, aspect of nuclear fallout? A) intense light B) explosive power C) thermal exposure D) radioactive contamination

What are the features of erosion?

The proper technique used to obtain a liquid sample using a pipette involves: Group of answer choices your mouth on one end of the pipette to suction the sample. a suction bulb or pipette pump to suction the sample.

Many chemical symbols represent the Latin names of the elements. True or False

The enthalpy of combustion of acetylene C2H2 is described by C2H2 (g) + (5/2) O2 (g) →2CO2 (g) + H2O (l),  H rxn = - 1299 kJ/mol.

A solution with a ph of 11 is first tested with phenolpthalein

Calculate the rate of emission of SO2 in g/s that results in a centerline (y = 0) concentration at ground level of 1.786 x 10-3 g/m3 one kilometer from the stack. The time of measurements was 1 P. M. on a clear summer afternoon. The wind speed was 2.

How many sigma and pi bonds does it contain ch3chchco2h?

A container holds 50.0ml of nitrogen at 25°c and a pressure of 736 mm hg. What will be it's volume if the temperature increases by 35°c.

A 0.080 kg robin sits on a perch 6.0 meters above the ground. What is the potential energy of the robin