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
Computers have the mineral _______________ in their motherboard.
lana66690 [7]

Answer:

silica

Explanation:

6 0
2 years ago
Read 2 more answers
Complete the following analogy:
Citrus2011 [14]
The answer of the question is C. Magnetic fields
7 0
3 years ago
What is the molar mass of Sn(CO3)2?
Free_Kalibri [48]

Answer:

The molar mass and molecular weight of Sn(CO3)2 is 238.728.

Explanation:

7 0
3 years ago
26.8 moles of argon contain how many atoms?
Maru [420]
<span>1.61 × 1023 Multiply by 26.8 to get the answer.161.33 x 10 ^23   </span>
4 0
3 years ago
Read 2 more answers
How many g of MgCO3(s) are needed to make 1.2 L of 1.5 M MgCl2(aq) solution?
maw [93]
Molar mass of MgCO3 is 84.313 g/mol
You can calculate this from data on the periodic table:
Molar mass Mg = 24.305g/mol
molar mass C = 12.011g/mol
molar mass O = 15.999g/mol mass 3 mol = 47.997g
Total = 84.313g/mol

Mass to be used in 1.2L of 1.5M solution = 84.313g * 1.2L * 1.5mol /L = 151.763g
I have not taken significant figures into account
The balanced equation you provide is not necessary in this calculation
4 0
3 years ago
Other questions:
  • Given that pH + pOH = 14, what is the pH of a solution if its pOH is 12.4???
    10·1 answer
  • When an -OH group joins a hydrocarbon, an alcohol is formed. true or falsse
    9·1 answer
  • What is the mass of oxygen in 10.0 grams of water
    7·2 answers
  • The neutron has no electrical charge. True False
    8·2 answers
  • Liquid is a state of matter characterized by ionized particles, no definite shape or volume, and good electrical conductivity? T
    12·1 answer
  • 5. Which contains more nitrogen: 60g of urea, (NH2)2CO, or 100g of ammonium sulphate, (NH4)2SO4
    13·1 answer
  • I must type a short response. Can anyone help me out?
    13·1 answer
  • when a candle burns both physical and chemical changes take place at identify these changes give another example of a familiar p
    14·1 answer
  • Hiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii????????????????
    9·2 answers
  • What was johann dobereiner contribution to the periodic table
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!