Answer:
The hydrogen gas is prepared in the laboratory required zink granules, dilute sulphuric acid or dilute hydrogen chloride, flask or woulfe’s bottle, and thistle funnel. by the downward displacement of water because it is a gas lighter than water
Reaction:
Zn (s)+2HCl (aq) →ZnCl2(aq)+H2(g)
Zn (s)+H2SO4(aq)→ZnSO4(aq)+H2(g)
The zinc granules are taken in a flask or Woulfe’s bottle and It is connected with the delivery tube to a water trough containing water. Dilute sulphuric acid is poured slowly from the thistle funnel. The hydrogen gas is released and collected in a gas jar by by the downward displacement of water as H2 gas lighter than water
Zionism was the Jewish nationalist movement to create a Jewish homeland.
Answer:
the time of the lowest temperature.
Explanation:
Relative humidity simply talks about the ratio of the quantity of water the air contains at any given time, to the highest quantity of water the air could ever have. So when the water vapor content in air remains constant while the temperature falls, then the relative humidity tends to increase. This phenomenon usually takes place in the morning when the sun is yet to come out and the temperature is usually cooler. When sun peaks, afternoon sets in, the relative humidity then reduces.
Answer:
1
Explanation:
Air pressure gets lower the higher you go
Igneous (Volcanic)
(Earth Science > Geology > Rock transitions)
