TEST FOR AMMONIUM
a moist red litmus paper must be dipped into the solution. it gets converted to blue color and ammonia can be identified by its characteristic odor. this gives the confirmatory test for ammonia.
test for sulphate ion :
barium chloride is added to the solution. If white precipitate is formed, we can say SO42- ion is present in the solution. The ppt formed is soluble in dillute HCL.
By performing both these test scientist can confirm the presence of ammonium sulphate.
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I believe it's 144.12g out of 342.34g total hope this helps
CaCl2
All of the other choices are elements
Answer:
a gray substance and colourless liquid
Explanation:
lead oxide is reduced to lead while hydrogen is oxidized to water
Answer:
Exolaiend in explanation section
Explanation:
First of all, the automatic hammer is used to drive nails into tight spaces where where we can't get a sufficient striking force if we are to use a normal regular hammer in driving the nail.
So the nail to be driven is lifted out of rest(it's position). The energy here is gravitational potential energy.
Now, when it is driven into the tight spaces, the gravitational energy would be converted to kinetic energy due to the motion and speed involved.