Explanation:
Method of prepration of sodium thiosulphate - definition
In the laboratory, this salt can be prepared by heating an aqueous solution of sodium sulphite with sulphur or by boiling aqueous NaOH and sulfur according to this equation:
![6NaOH + 4 S _{2} Na _{2} S ->Na _{2} S_{2}O_{3}+ 3H _{2}O.](https://tex.z-dn.net/?f=6NaOH%20%2B%204%20S%20_%7B2%7D%20Na%20_%7B2%7D%20S%20-%3ENa%20_%7B2%7D%20S_%7B2%7DO_%7B3%7D%2B%203H%20_%7B2%7DO.)
Answer:
The energy released from food was once energy from the sun that was captured by plants in the chemical process that forms plant matter (from air and water). Food provides animals with the materials they need for body repair and growth and the energy they need to maintain body warmth and for motion.
Answer:
evaporation and condesation
Explanation:
because he was curiuos
Hey there!
We know that a chemical reaction is balanced when there is the same amount of each element on both sides of the equation.
According to the law of conservation of mass, matter cannot be created or destroyed, so we must have the same amount of each element on each side of a chemical equation.
We count the amount of each element on each side, and the products should have the same number as the reactants.
Hope this helps!
The formula for density is Density = mass / volume, or D = m/v.