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
taurus [48]
2 years ago
15

When the following equation is balanced, the coefficient of H2O is Ca(s) + H2O + Ca(OH)2 + H2 a) 2

Chemistry
1 answer:
frez [133]2 years ago
6 0

Answer:

Ca(s) + 2H_2O \rightarrow Ca(OH)_2 +H_2

Explanation:

Given:

In a balanced chemical equation, the number of atoms of each element are equal on both sides.

Ca(s) + H_2O \rightarrow Ca(OH)_2 +H_2

No. of atoms of Ca in left hand side = 1

No. of atoms of Ca in right hand side = 1

So, no. of atoms of Ca is balanced

Now,

No. of atoms of O in left hand side = 1

No. of atoms of O in right hand side = 2

Now multiply H2O with 2

Ca(s) + 2H_2O \rightarrow Ca(OH)_2 +H_2

No. of atoms of O are balanced on each side

No. of atoms of H in left hand side = 4

No. of atoms of H in right hand side = 4

Now, each element is balanced

So coefficient of H2O after balancing = 2

You might be interested in
Fatima is designing an advanced graphics card for a next-generation video game system. She needs to be able to precisely control
belka [17]

Answer:

semiconducting and tellurium

Explanation:

u did the test hope this helps babes

3 0
3 years ago
Read 2 more answers
What is the most accurate description of c6h12o6?
storchak [24]
A chemestretic equation equation which is formed by h20 mc square hydrogen peroxide and the equation of cf6c7bu7c





Hope it helped
8 0
3 years ago
During the process of cellular respiration, water becomes oxygen.<br><br> True<br> False
White raven [17]

Answer:

False

Explanation:

Please mark brainlliest if you want and mark 5 stars please. Thank you and have a good day.

8 0
3 years ago
Read 2 more answers
The number of electrons in atoms can change when elements combine to form
Nutka1998 [239]
It can change in C. compounds to change when elements combine that will form 
8 0
3 years ago
Wine goes bad soon after opening because the ethanol ch3ch2oh in it reacts with oxygen gas o2 from the air to form water h2o and
maks197457 [2]
1) Chemical reaction

CH3 CH2 OH + O2 ---> CH3COOH + H2O

It is balanced

2) Molar ratios

1 mol CH3 CH2OH : 1 mol O2 : 1 mol CH3COOH : 1 mol H2O

3) Conversion of 7.6 grams of ethanol to moles

Molar mass of CH3CH2OH = 2 * 12g/mol + 6 * 1 g/mol + 16 g/mol = 46 g/mol

moles = mass / molar mass = 7.6 g / 46g/mol = 0.165 mol

4) Use of proportions with the molar ratios:

1mol CH3CH2OH / 1mol O2 = 0.165 mol CH3CH2OH / x => x = 0.165 mol CH3CH2OH.

5)  Conversion of 0.165 mol O2 to grams

mass in grams = number of moles * molar mass = 0.165 mol * (2 * 16g/mol)

mass = 5.28 g ≈ 5.3 g

Answer: 5.3 g
3 0
3 years ago
Read 2 more answers
Other questions:
  • What is a percent volume of ethanol c2h60 in the final solution when 85 ml of it is diluted to a volume?
    8·1 answer
  • How many significant figures are in 28.6 g
    10·2 answers
  • Lead ions can be removed from solution by precipitation with sulfate ions. Suppose a solution contains lead(II) nitrate.Write a
    15·2 answers
  • 2NO + 2H2 ⟶N2 + 2H2O What would the rate law be if the mechanism for this reaction were: 2NO + H2 ⟶N2 + H2O2 (slow) H2O2 + H2 ⟶2
    13·1 answer
  • Hydrogen gas can be made by reacting methane (CH4) with high temperature steam: CH4(g) + H2O(g) ---&gt; CO(g) + 3H2(g)
    10·2 answers
  • How does the difference in the mass of the ball affects the changes in the distance of the object
    9·1 answer
  • If you could please summarise the information in the two screenshots I'll give you brainiest
    10·1 answer
  • Which of the following lists the stages of mitosis in order
    5·2 answers
  • Craig needs to organize, analyze, and interpret large amounts of quantitative data that he generated during an experiment. Which
    13·1 answer
  • Determine whether each practice is recommended to keep a micropipette clean and functioning properly.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!