No two different elements will have the atomic number.-

Hbr addition to an alkene is a ch221 reaction with which you should be familiar. when peroxides are present, one regioisomer is observed while in the absence of peroxides, the other regioisomer is observed.

You have a stock solution of 15.8 m nh3. how many milliliters of this solution should you dilute to make 1000.0 ml of 0.250 m nh3?

What factors could be used to increase reaction rate? Check all that apply. using an inhibitor using a catalyst increasing temperature increasing pressure decreasing concentration

22. What percent would be dominant? What percent would be recessive?

Which of the following would decrease current flow in a circuit made originally from a 1.5 volt battery, a loop of wire and a switch? A. original battery, thicker wire B. original battery, thinner wire C. 3V battery, thicker wire D.

Why are valence electrons important?

A woman carriers her 100-newton child for a distance of 50 meters to the child's bedroom. How much work does the woman do?

Which statement best describes the compressibility of a gas? A Increasing the temperature of a gas decreases the pressure. B Increasing the temperature of a gas increases the pressure. C Increasing the pressure on a gas decreases the volume.

How many grams are in 3.0 moles of KCI (potassium chloride) ?

3 During a flame test, a lithium salt produces a characteristic red flame. This red color is produced when electrons in excited lithium atoms (1) are lost by the atoms (2) are gained by the atoms (3) return to lower energy states within the atoms