The elements in group 2 all have _

valence electrons.

A. 2

4

6

8

Avogadro argued that equal volumes of different gases collected under similar circumstances contain the same number of particles. He found that the volume is directly proportional to moles of gas when the pressure and volume remain constant.

How mang moles of oxygen are produced when 2 mol of potassium chlorate decompose

Carbon monoxide (CO) is toxic to humans because it: A. is rapidly converted to toxic CO2. B. binds to myoglobin and causes it to denature. C. binds to the globin portion of hemoglobin and prevents the binding of O2. D.

All of the following are conductors of electricity except

Star A has a temperature of 9000 K while Star B has a temperature 3000 K. If the two stars are the same size, according to the Stefan-Boltzmann law, how much brighter is star A than star B?

Watch It! #3 After watching the examples in the video of radiation, list 2 other examples that you come up with on your own.

Tear gas has the composition 40.25% carbon, 6.19% hydrogen, 8.94% oxygen, 44.62% bromine. what is the empirical formula of this compound?

Explain why ships traveling from east to west across the Atlantic take days longer than ships traveling the same distance from west to east.

In a titration 25.0 ml of a. 20 M NaOH solution is used to neutralize 10.0 ml of HCl. Write the equation for this neutralization reaction and calculate the molarity of the acid.

4*C: 4cm 8*C: 10cm 12*C: 14cm 16*C: 18cm 20*C:24cm 24*C: 12cm what is the independent variable, dependent variable and three constant variables?