A student weighs 1.662 of NaHCO3. She then heats it in a test tube until the reaction is complete. How many grams Na2CO3 can be produced in other words,
what is the theoretical yield)? Don't write the unit, just the number with correct
sig figs. (NaHCO3 = 84.01 g/mol, Na2CO3 = 105.99 g/mol)
2NaHCO3(s) - Na2CO3(s) + CO2(g) + H2O(g)

Compared with the freezing-point depression of a 0.01 m c6h12o6 solution, the freezing-point depression of a 0.01 m nacl solution is

Indicate whether the specified alkyl halides will form primarily substitution products, only elimination products, both substitution and elimination products, or no products when they react with sodium methoxide. 1-bromobutane 1-bromo-2-methylpropane 2-bromobutane 2-bromo-2-methylpropane

Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?