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
Archy [21]
3 years ago
8

PLEASE HELP!!!

Chemistry
1 answer:
Olenka [21]3 years ago
4 0

Answer:

7 moles

Explanation:

Given data:

Moles of hydrogen = 7 mol

Moles of water formed = ?

Solution:

Chemical equation:

2H₂ + O₂ → 2H₂O

Now we will compare the moles of water with hydrogen from balance chemical equation:

             H₂          :        H₂O

               2          :           2

               7          :           7

So in the presence of excess oxygen and 7 moles of hydrogen seven number of moles of water produced.

You might be interested in
At STP, which element is brittle and not a conductor of electricity
Sever21 [200]
Your answer is the element of S I think.
5 0
3 years ago
How many moles of KBr will be produced from 7 moles of BaBr2?
steposvetlana [31]

Answer:

7 moles kBR

Explanation:

not sure but hope works

7 0
3 years ago
Which statement about common descent is correct?
ludmilkaskok [199]
Hey, What are the options can’t see anything!
7 0
3 years ago
If the substance in the diagram was heated to T2, what is happening if the substance is allowed to approach T1?
VMariaS [17]

Answer:

b

Explanation:

5 0
3 years ago
Calculate the Molecular or Formula massof each of the following:
DiKsa [7]

Explanation:

Molar mass  

The mass present in one mole of a specific species .

The molar mass of a compound , can easily be calculated as the sum of the all the individual atom multiplied by the number of total atoms .

(a) P₄

Molar mass of of the atoms are -

Phosphorous , P = 31 g/mol

Molecular mass of  P₄ = ( 4 * 31 ) = 124 g/mol .

(b) H₂O

Molar mass of of the atoms are -

Hydrogen , H = 1 g/mol

oxygen , O = 16 g/mol.

Molecular mass of H₂O = ( 2 * 1 ) + ( 1 * 16 ) = 18 g/mol

(c) Ca(NO₃)₂

Molar mass of of the atoms are -

calcium , Ca = 40 g/mol

nitrogen, N = 14 g/mol

oxygen , O = 16 g/mol.

Molecular mass of  Ca(NO₃)₂ = ( 1 * 40 ) + ( 2 * 14 ) + ( 6 * 16 ) = 164 g/mol.

(d)CH₃CO₂H (acetic acid)

Molar mass of of the atoms are -

Carbon , C = 12 g/mol.

oxygen , O = 16 g/mol.  

Hydrogen , H = 1 g/mol

Molecular mass of CH₃CO₂H =( 2 * 12 ) + (2 * 16 ) + (4 * 1 ) = 60 g/mol.

(e) C₁₂H₂₂O₁₁ (sucrose, cane sugar).

Molar mass of of the atoms are -

Carbon , C = 12 g/mol.

oxygen , O = 16 g/mol.  

Hydrogen , H = 1 g/mol

Molecular mass of C₁₂H₂₂O₁₁ = (12 * 12 ) + ( 22 * 1 ) + ( 11 * 16 ) = 342 g/mol.

 

4 0
3 years ago
Other questions:
  • How much heat must be removed from 456 g of water at 25.0°c to change it into ice at?
    5·1 answer
  • 3 x 1023 molecules of element Z have a mass of 38 g. What is the mass of 1 mole?
    9·2 answers
  • There are three common functional groups in organic chemistry that are readily ionized by adjusting the ph of the aqueous soluti
    5·1 answer
  • How do you determine which tool to use for lab activities?
    7·1 answer
  • 2. On the basis of your results, what is the relationship between the temperature of the solvent and the rate of solution format
    9·1 answer
  • When determining the standard reduction potential of a substance by using a standard hydrogen electrode as a reference, the stan
    7·1 answer
  • Blamed instead of sugar for rising rates of heart diease
    14·1 answer
  • How many molecules of nitrogen gas are found in 0.045 L of nitrogen gas at STP
    7·1 answer
  • Examps of sources of primary pollutants
    13·1 answer
  • Design a visual or 3-D model to represent how the positioning of multiple objects in a system can influence the potential energy
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!