Blog

What is the mass of 5.00 x 1023 carbon atoms in grams?

Write the chemical formula for a compound made from sodium and chlorine. [blue1] Name the compound.  [blue2] Is it an ionic or molecular compound?  [blue3]

Make the following conversions: How many centimeters are in one meter?  [Ann1] How many kilograms are in one gram?  [Ann2] How many milligrams are in one megagram?  [Ann3]

Express each number in standard form. 8.03 x 104  [Fay10] 8.03 x 10-4  [Fay11] 7.635 x 102  [Fay12]

What is the number of protons in the nucleus of each element? Sodium  [Joe1] Oxygen  [Joe2] Chlorine  [Joe3]

Why is the Lewis diagram for carbon dioxide linear?

Based on the following balanced equation, how many S atoms will be formed by reacting 1,078 molecules of H2S?   SO2  +   2H2S  –> 3S   + 2H2O

How many moles of carbon are in one mole of caffeine (C8H10N4O2}?

Why is an ionic compound unlikely to consist of two negatively charged ions?

For the following reaction, identify the Lewis acid.    a. I b. II c. III d. Both I & III