How many zeroes are significant in this number?   0.08030200 grams

Calculate the following result to the correct number of digits.      (Use only digits which are significant.)       (3.69 x 10‑4)  (4.5911 x 107)       (7.311 x 10‑2)  ( 23.59 x 1017)    =     

How many atoms of H are there in 39.2 g of H2S?  Consider the mass of one mole. 

How many zeroes are significant in this number?   0.08030200 grams

What is the percentage of carbon in potassium hydrogen carbonate, KHCO3?

Balance the following chemical equation to the lowest stoichiometric coefficients. What is the coefficient for water in the final equation?   C3H8O  + O2  à  CO2  + H2O

The process of generating meaning by sending and receiving verbal and nonverbal symbols and signs that are influenced by multiple contexts is _____________.

Expressions of approval or disapproval that are subjective and not verifiable are known as ____________.

___________ refers to the rules that govern how words are used to make phrases and sentences.

__________ are culturally agreed on and ever-changing systems of symbols that help us organize, understand, and generate meaning.