Answer:
gas
Explanation:
It is a gas because it can't be seen for long or at all in the air.
Ans:
from the product / reactant solution
from the environment when no solution is involved
Endothermic reactions are those reactions that proceed with the absorption of heat energy. In this case, the enthalpy of the reactants i.e. the initial energy is lower than that of the products. Therefore, energy needs to be supplied in order to break the bonds in the reactants and allow the reaction to proceed. This energy can be absorbed either from the environment when no solution is involved or from the product reactant solution.
For example, electrolysis of water which produces H2 and O2 is an endothermic reaction. Here, energy is absorbed by water in the form of electricity (current) to split it into corresponding products.
Answer:
Explanation:
1. a student conduct an experiment she found that her actual yield was
20g. the theoretical yield for the experiment is 25g. calculate the percent
yield for the reaction
Answer:
So 8 g of oxygen will react with 1 g of hydrogen to produce 9 g of water. 8–1 = 7 g of hydrogen ... Number of moles = given mass/ molecular or atomic mass.
Explanation: