Answer:
The best thermometer to use for this temperature is the alcohol-in-a -glass thermometer.
Explanation:
The alcohol thermometer is a type of thermometer which uses ethanol as its thermometric liquid. This has some advantages at low temperatures because ethanol freezes at about −114.9 °C that is (−174.82 °F).
Due to its low freezing point, it can still function effectively as a thermometric liquid, expanding and contracting properly based on the applied heat, when dealing with temperature measurements that are at about -38.2°F.
because a postive and negative can be used in. ion
She I study I like to read the question while covering the answer and then answer it I. My head. Then I check to see if it is right. Also if you want flash cards just search up the topic with quizlet for online quizzes about your subject. If needed take 25 mins to study with 5 min breaks.
Answer:
Explanation:
1. First balance the equation for the synthesis of cryolite:
2. Find the limiting reagent between the 
and 
- First calculate the number of moles of each compound using its molar mass and the mass that reacted completely:
- Divide the number of moles obtained between the stoichiometric coefficient of each compound in the chemical reaction:
The 
is the limiting reagent because it has the smallest number.
3. Find the mass of cryolite produced:
