How many moles of NaOH are present in 25.0 mL of 0.787 M NaOH solutions?

If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?

3.09 lab: reaction of metals 1 which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.

Which is an example of a reversible physical change?