Three different students obtain the mass of a single brass bar.  Their results for the mass are 4.132 grams, 4.133 grams, and 4.132 grams. The actual mass of the bar is 6.000 grams. The results for the mass of the brass bar are

When this chemical equation is balanced, the coefficient for carbon dioxide is   _____ CH4  +  _____  O2    ⟶ _____ CO2  +  ______ H2O

Which of the following is/are examples of chemical properties? 

The density of water is NOT equal to which of the following?

The reaction between ethane and oxygen to produce carbon dioxide and water is an example of a _______________________ reaction.  

_________________ is referred to as the central science.

Which of the following contribute most significantly to the mass of an atom?

Nitrogen and hydrogen react to produce ammonia.  Nitrogen is a ____________ in this chemical reaction.

When this chemical equation is balanced, the coefficient for oxygen is   _____ KClO3  –> _____ O2  +  _____ KCl

Bernstein-Vazirani part-2 What is the value of ?