Which statement best describes elements ?
a. they are the smallest particles of any material.
b. they are composed of only one type of atom.
c. they are the most expensive materials on earth.
d. they break down easily

1. baking powder is a 1: 1 molar mixture of cream of tartar (khc4h4o6) and baking soda (nahco3). a recipe calls for two teaspoons (a total of 8.0 grams) of cream of tartar. how much baking soda must be added for both materials to react completely?

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table

Which element is least likely to undergo a chemical reaction