How many valence electrons are found in one atom of nitrogen (n) ? 2 5 7 14?

Determine the electron geometry (eg) and molecular geometry (mg) of CO2. eg=trigonal planar, mg=trigonal planar eg=linear, mg=linear eg=tetrahedral, mg=tetrahedral eg=trigonal planar, mg=bent eg=linear, mg=trigonal planar

If a concentration of 10 fluorescent molecules per μm2of cell membrane is needed to visualize a cell under the microscope, how many molecules of dye would be needed to visualize a single egg?

Which one below will can cause the reaction rate to increase? increasing concentration Increasing particle size decreasing temperature increasing the inhibitor

Write the balanced equation for the ionization of the weak base pyridine

An object with too many is negatively charged.

A small 15 kilogram canoe is floating downriver at a speed of 4 m/s. What is the canoe's kinetic energy?

Liquid water is heated until it boils and becomes water gas. Which statement is true about the water?

You are conducting an experiment on plant growth. You take a plant fresh from the soil that weighs 5 kilograms (kg). Then you dry the plant overnight and determine the dry weight to be 1 kg.

What is the ratio of Fe+3 ions to O2 - ions in a neutral compound? a. 1:2 b. 2:1 c. 2:3 d. 3:2

What is the specific heat capacity of a 17.5g sample of an unknown metal that releases 6700J of heat when it cools from 90 to 25 degrees C?