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

7 0

2 years ago

You have a circle with a diameter of 24 divided into 16 sections what is the size of each section

ziro4ka [17]

The circle with diameter of 24 means that 2 $\pi$ r = 24.

Solving for r, we get $\pi$ r=24.

Dividing both sides by $\pi$ , we get r=24/ $\pi$ .

The area of the full circle is $\pi$ times 24 squared over $\pi ^{2}$ . The $\pi$ being multiplied cancels out, meaning that 24 squared over $\pi$ is the area of the full circle. 24 squared is 576, and dividing by 16 we get $\frac{36}{\pi}$ as the answer.

4 0

2 years ago

A drainage mat (drainage blanket) is usually placed: Select one:

Dmitriy789 [7]

Answer:

a is the answer 100% vertically

Explanation:

4 0

3 years ago