The density of a sample of gas is 1.0 g/L. What is the density in units of mg/mL

The air temperature outside a flask in which a reaction is occuring changes from 20C to 29C over a period of 15 seconds. What kind of reaction do you know is occurring inside the flask

What is the oxidation state of cobalt in cocl2 6h2o?

Which best describes the purpose of a controlled expirement

What is the total number of atoms in this formula? NaHCO3

List two physical properties of a ball

Which statement about neutrons is true? A. Neutrons travel around the nucleus of an atom. B. The number of neutrons in an atom always equals the number of electrons. C. Neutrons have less mass than electrons. or D. A neutron has no charge.

Of these gases, which has the fastest-moving molecules (on average) at a given temperature?

What is the oxidation number for zinc? How does zinc's electron configuration account for this oxidation number?

Which of the following experimental observations proved that the idea of matter and mass being evenly distributed in an atom was flawed? A. Less than 1% of the alpha particles went un-deflected through the gold foil. B.

Calculate the energy E of a sample of 3.50 mol of ideal oxygen gas (O2) molecules at a temperature of 310 K. Assume that the molecules are free to rotate and move in three dimensions, but ignore vibrations.