The amount of mass an object has per its volume is known as density.
density=mass/ volume
answer: c. density.
Answer:
F. a dark solid formed on the zinc.
-Is because when the solid is formed it is called the "precipitate", which is commonly know as chemical reaction.
To increase the rate of a reaction, you can either do any of the following:
-increase the temperature
-increase concentration of the aqueous reactant
-increase pressure of the gas
-use a catalyst
-increase surface area of the solid reactant
From these, the engineer should therefore do C. Adding a catalyst speeds up the reaction without really joining the reaction.
Answer:
Fractional distillation with the use of a reflux column and careful separation of ethanol fractions, often known as pure grain alcohol (PGA), may create around 96% ethanol and 4% water from either grain, oil or any other source. Search for images of various configuration kinds. Fractional distillation equipment. You can do alcohol enrichment freezes and removes fluid with a higher level of alcohol (sticks a hole into the ice and drains it to the centre). Don't try in a glass container.
Explanation:
