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
GalinKa [24]
3 years ago
6

NaCl + H2O → NaOH + Cl2 + H2 How many grams of chlorine gas, Cl2 are given off if 7.5 grams of sodium chloride, NaCl, are decomp

osed? Is this equation balanced?
Chemistry
1 answer:
german3 years ago
3 0
Yes BC ther is a equal amount of sodiam
You might be interested in
16. Formaldhyde has a mole ratio of 1 mole C: 2 moles H: 1 mole O. Its empirical formula is the same as its
Dominik [7]

Answer:

d. 97.60 g

Explanation:

Given parameters:

Number of moles of formaldehyde = 3.25moles

  Ratio:

                 C               H              O

                  1                2               1

Unknown:

Mass of this sample  = ?

Solution:

The empirical formula of a compound is its simplest formula. It is the simplest whole number ratio of the atoms in a given substance.

The molecular formula is the actual formula of the compound.

 Since the molecular and empirical formula are the same here, the formula of the compound is;

                   CH₂O

To find the mass of the formaldehyde, use the expression below;

        Mass  = number of moles x molar mass

             molar mass of CH₂O = 12 + 2(1) + 16  = 30g/mol

      Mass  = 3.25 x 30  = 97.5g

6 0
3 years ago
Atomic number of a Carbon atom is 6. How many electrons does it have?
Nostrana [21]
In the first shell there is 2 electrons and on the second shell there is 4 elections.
6 0
3 years ago
Which of the following describes a characteristic of water that makes it cohesive in nature?
Yuri [45]

Answer:

it has a huge electronegativity difference between it's atoms

8 0
3 years ago
Using the following thermochemical data, what is the change in enthalpy for the following reaction?
slavikrds [6]

Answer:

D. -120.9 kJ

Explanation:

According to Hess's law ,the total enthalpy change for a reaction is the sum of all changes regardless of the stages or the steps of the reaction.

CaO + 2HCl \rightarrow CaCl_{2} + H_{2}O\ (\Delta H = -186\ kJ)....(1)

CaO + H_{2}O\rightarrow Ca(OH)_{2}\ (\Delta H = - 65 \ kJ)

(this reaction should be reversed in order to reach the required reaction )

On reversing the reaction the sign of \Delta H get reversed.

(In this case change sign from '-' to'+'. Hence  \Delta H = + 65 kJ)

CaO + 2HCl \rightarrow  CaCl_{2} + H_{2}O\ (\Delta H = - 186\ kJ)....(1)

Ca(OH)_{2}   \rightarrow  CaO + H_{2}O\ (\Delta H = + 65 kJ )......(2)

Adding equation (1) and (2)

Ca(OH)_{2} + 2HCl \rightarrow CaCl_{2} + 2H_{2}O[tex][tex]Delta H = - 186 + 65 = - 121\kJ

Delta H = - 121\kJ (It is nearly equal to -120.9 kJ)

7 0
3 years ago
Pls help due today!
algol13

Answer:

Explanation: We all learn at school that pure water always boils at 100°C (212°F), under normal atmospheric pressure. ... And removing dissolved air from water can easily raise its boiling temperature by about 10 degrees centigrade.

3 0
3 years ago
Other questions:
  • Technetium-99m, a “metastable” nuclide of
    6·1 answer
  • Periodic Table Question
    11·1 answer
  • Where are elements that form molecules of two of the same atoms commonly found on the periodic table?
    6·2 answers
  • How do I find density
    15·1 answer
  • If 6.02*10^23 molecules of ammonia react with 12.04*10^23 molecules of hydrogen chloride, how many molecules are in the reaction
    8·1 answer
  • Pls Help! If 3 moles of sugar (C12H22O11) are required to make a giant cobra, how many liters of CO2 will be produced to create
    10·1 answer
  • Which cools faster, magma or lava?
    14·2 answers
  • Need help with this question please I’m really really going to appreciate it
    13·1 answer
  • why when you mix three different colors the new color you see is brighter than the original colors you mixed
    10·1 answer
  • What is the color of the flame when magnesium burns in air ​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!