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
makvit [3.9K]
3 years ago
10

The number of moles of hydrogen that is needed to produce 0.253 mol of water is...

Chemistry
1 answer:
Oksi-84 [34.3K]3 years ago
8 0
The chemical formula of water is written as H2O we can just use the ratio of the atoms since we are not given the reaction. Hydrogen is a diatomic substance so that it exists as H2. We calculate as follows:

0.253 mol H2O ( 1 mol H2 / 1 mol H2O ) = 0.253 H2 needed

Hope this answers the question. Have a nice day. 
You might be interested in
The smallest ionic radius among the following. <br> Li<br> Mg<br> Na+<br> be+
dimaraw [331]
The correct answer is Be+

That is because it lost a single electron but still has the same number of protons, and thus the effective charge attracting each electron is greater, which in turn makes the radius even smaller
5 0
2 years ago
before the quarry was dug, the land contained more vegetation . what impact has this change most likely had on the local ecosyst
Sergio039 [100]
It was loss of nutrients, I think


Explanation:

The quarry was dug up and vegetation started dying. The quarry was probably rich with nutrients

Please brainliest !! ❤️
5 0
2 years ago
Express as ordinary numbers. 3 x 100 =
Stolb23 [73]
The answer is 300
3 * 100
3 * 10 * 10
30 * 10
300

Hope this helps. If it did, consider making it Brainliest!
7 0
2 years ago
Read 2 more answers
What is the<br> total charge of 1 proton, 1 electron, and 1 neutron?
iragen [17]

Given parameters:

Number of protons  = 1

Number of electrons = 1

Number of neutrons  = 1

unknown:

Total charge = ?

Atoms are made up of elementary particles of protons neutrons and electrons.

Protons are the positively charged particles in an atom

Electrons are the negatively charged particles

Neutrons do not carry any charges

To find the total charge on an atom; simply find the difference between the number of protons and electrons.

       Total charge  = Number of protons - number of electrons

                               = 1 - 1

       Total charge is 0

Therefore, the total charge is zero, 0

7 0
3 years ago
I just don’t know what to do
ValentinkaMS [17]

Answer:

I dont know if this is correct.. but maybe in the tool row, put graduated cylinder because you use graduated cylinders to measure water and for units put milliliters or liters?? Sorry if this isnt correct i wouldnt know what else to put !

Explanation:

3 0
2 years ago
Other questions:
  • A scientist obtains the number 1250.37986 on a calculator. If this number actually has four (4) significant figures, how should
    13·2 answers
  • Which of these is caused by a chemical change?
    8·1 answer
  • Hydrogen reacts with chlorine to form hydrogen chloride (HCl (g), mc012-1.jpgHf = –92.3 kJ/mol) according to the reaction below.
    12·2 answers
  • How does a system at equilibrium respond to the addition of more reactant
    5·1 answer
  • Becquerel expected to find (an)____when he developed the photographic plate that had Sun-exposed minerals on top of it. Becquere
    11·2 answers
  • Why is copper a good electrcity conducter
    10·2 answers
  • Which of the following values displays the pH of a base?
    11·1 answer
  • How many Joules are present in 7401 kJ?
    5·1 answer
  • 8. How much heat, in kilojoules, is needed to produce 1850 grams of ammonia (NH3),
    9·1 answer
  • A gas effuses 4.0 times faster than oxygen (o2). what is the molecular mass of the gas? 1.0 g/mol 1.0 g/mol 2.0 g/mol 2.0 g/mol
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!