Potassium has_____________valence electron(s).

The correct name of the compound  NCl3 is

The formula for a molecule formed from Na and O would be.

The name for Cu(NO2)2 is:

 The strongest interactions between atoms of helium, He, are examples of

Sulfur has 16 valence electrons.

Write the chemical name for each chemical formula. MgSO4[name1] Mg(HSO3)2[name2]

Classify the following elements as metals, nonmetals or metalloids.  sulfur and silicon

On a hot day, the thermometer read 95 °F. What is the temperature in degrees Celsius? F=1.8C+32

It takes 50. cal to raise the temperature of 10. g of water by 5.0 °C.  Specific Heat of water = 1 cal/g°C