1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Xelga [282]
2 years ago
9

How is hydrogen gas prepared in laboratory? Explain along with chemical equation.​

Geography
1 answer:
xeze [42]2 years ago
7 0

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

You might be interested in
What is tube well method also known as?
ollegr [7]

Answer:

cable tool

Explanation:

I think thats what its called

8 0
3 years ago
Why japan became more reliant on railways rather than roadways
lorasvet [3.4K]
Railways are the most important means of passenger transportation in Japan, maintaining this status since the late nineteenth century. Government policy promoted railways as an efficient transportation system for a country that lacks fossil fuels and is nearly completely dependent on imports.
I hope this helps!!!!
5 0
3 years ago
Can you please help me solve this. Thank you
Lyrx [107]

<h3>As we know that sum of three angles of triangle is 180º.</h3>

\blue\starwe have

angle \: a + angle \: b+ angle \: c= 180 \\

a + 45 + 90 = 180 \\ a = 180 - 135 \\ a = 45

<h3>\blue\star The angles a and c are equal so,</h3>
  • cb = ab. [ sides opp to equal angles are equal]

so x is also 16

<h3>\blue\starNow we have two side we can easily find the third side by P.G.T</h3>
  • {AC}^{2} = {BC}^{2} + {AB}^{2}
  • {AC}^{2} = {16}^{2} + {16}^{2}
  • {AC}= \sqrt{512}

<h3>so the r is root 512 and x is 16.</h3>

Hope it helpa

3 0
3 years ago
Underdeveloped nations do not exploit girls and women to make money.<br><br><br><br>​
ryzh [129]

Answer:

They do exploit girls and women to make money because they see that as a job and since their country is not developed they do what they like and there's no serous source of income, there's; bad roads, poor government facilities and even less educational sources.......

Explanation:

That's my view ✌❤

3 0
3 years ago
During a total lunar eclipse, during totality, you'd expect:.
alexandr1967 [171]

I was a bit lost in the wording but I think I understand now...

When the lunar eclipse is in action, the earth's umbra thing will start covering the moon, making it possible to see it. When the earth's umbra completely covers the moon it will either have a red, brown or even sometimes a yellow look to it.

I think this was correct but I'm not sure about that. If this was wrong I'm really sorry and hope someone can give you the right answer for this.

5 0
2 years ago
Other questions:
  • The primary regions of origin of refugees applying to come to the US in 2007 were __________.
    14·1 answer
  • Describe the important role that priests played in the Mayan culture. What were some of their duties?
    5·1 answer
  • Which Canadian province identifies strongly with the United Kingdom?
    13·1 answer
  • What the earth map shows 250 million ago
    8·2 answers
  • A wide sloping deposit of sediment formed where a stream leaves a mountain range is called
    14·1 answer
  • If SX=2y+2 and XU=3y-5, find the value of y
    10·1 answer
  • Why there are seasons and Explain why there are minor differences between the seasons at the equator.
    5·2 answers
  • Why is organic farming less harmful to the environment then industrial farming?
    11·2 answers
  • A street that is 172 m long is coverd by snow . City workers are useing a snowplow to cleer the street . A tire on the snowplow
    9·1 answer
  • The circulatory motion of descending cool air and ascending warm air is known as?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!