Answer:
4.22 × 10 ⁻²² mol
Explanation:
Given data:
Number of molecules of bromine = 254 molecules
Number of moles = ?
Solution:
1 mole = 6.02 × 10 ²³ molecules
254 molecules × 1 mol / 6.02 × 10 ²³ molecules
42.2 × 10 ⁻²³ mol
4.22 × 10 ⁻²² mol
Correct question: A tool used for vegetable strainer,it is essential for various tasks from cleaning vegetables to straining pasta or tin contents.
Answer: The tool is called COLANDER.
Explanation:
In the kitchen, there are different types of equipments and utensils which makes work easier and faster. Examples of such equipment/ utensils includes:
--> graters,
--> cutleries ( spoon, fork, knife)
--> colanders
--> Pots
--> Blenders
These utensils are made up of rubber, plastics, wood, ceramics and stainless steel.
A Colander is an important kitchen utensil, a type of strainer with perforated holes. The holes allows fluid to drain leaving behind the solid part. It is usually bowl - shaped. It helps in performing the following roles in the kitchen:
--> cleaning vegetables
--> straining of pasta
--> straining of tin contents
Colanders are usually made of stainless steel, plastics and ceramics.
Answer:
Potassium nitrate react with aluminum to produce potassium aluminate, aluminum oxide and nitrogen. This reaction takes place at a temperature near 400°C.
Explanation:
6KNO3 + 10Al → 6KAlO2 + 2Al2O3 + 3N2
