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
PilotLPTM [1.2K]
3 years ago
10

With all the coefficient set to 1, how can you tell that the equation is not balanced?

Chemistry
1 answer:
murzikaleks [220]3 years ago
7 0

Answer:

Well for any equation if all the coefficients are set to 1, this might result in unequal numbers of atoms of the same element on both sides

Explanation:

For example:

A+B---->B_{2} + A_{2} (for this equation all the coefficient (the number before element) are 1 but you can clearly see it is not balanced because one side has 1 A atom and other side has 2 B atoms....therefore we need to balance em.

2A+2B-----> A_{2} + B_{2} Here both atoms are balanced.

You might be interested in
What is the use of a pedigree chart? Please do not answer wat a perigee chart is!.
FinnZ [79.3K]
Pedigree charts are used to see traits that are present in families or individuals. For example, it can be used see if certain diseases are running through someone's family and if that individual will inherit the disease.
8 0
3 years ago
Read 2 more answers
The reaction shown below has a positive enthalpy change and a negative entropy change. 2C (s) + 2H2 (g) yields C2H4 (g) Which of
Drupady [299]
Answer is: <span>The reaction will not be spontaneous at any temperature.

</span>

<span>Gibbs free energy (G) determines if reaction will proceed spontaneously.
ΔG = ΔH - T·ΔS.
ΔG - changes in Gibbs free energy.
ΔH - changes in enthalpy.
ΔS - changes in entropy.
T is temperature in Kelvins.
When ΔS < 0 (negative entropy change) and ΔH > 0 (endothermic reaction), the process is never spontaneous (ΔG> 0).</span>

5 0
3 years ago
A sample of an ionic compound NaA, where A- is the anion of a
vitfil [10]

Answer:

a) Kb = 10^-9

b) pH = 3.02

Explanation:

a) pH 5.0 titration with a 100 mL sample containing 500 mL of 0.10 M HCl, or 0.05 moles of HCl. Therefore we have the following:

[NaA] and [A-] = 0.05/0.6 = 0.083 M

Kb = Kw/Ka = 10^-14/[H+] = 10^-14/10^-5 = 10^-9

b) For the stoichiometric point in the titration, 0.100 moles of NaA have to be found in a 1.1L solution, and this is equal to:

[A-] = [H+] = (0.1 L)*(1 M)/1.1 L = 0.091 M

pKb = 10^-9

Ka = 10^-5

HA = H+ + A-

Ka = 10^-5 = ([H+]*[A-])/[HA] = [H+]^2/(0.091 - [H+])

[H+]^2 + 10^5 * [H+] - 10^-5 * 0.091 = 0

Clearing [H+]:

[H+] = 0.00095 M

pH = -log([H+]) = -log(0.00095) = 3.02

6 0
3 years ago
600.0 mL of air is at 20.0 c what is the volume at 60.0
pogonyaev

682mL

Explanation:

Given parameters:

Initial volume of air = 600mL

Initial temperature = 20°C

Final temperature = 60°C

Unknown:

Final volume = ?

Solution:

To solve this problem, we apply Charles's law';

Charles's law states that "at constant pressure, the volume of a given mass of gas is directly proportional to its temperature. "

Mathematically;

   \frac{V_{1} }{T_{1} }  = \frac{V_{2} }{T_{2} }

V₁ is the initial volume  of air

T₁ is the initial temperature  of air

V₂ is the final volume  of air

T₂ is the final temperature of air

To proceed in solving this problem, we need to convert the given temperature to Kelvin;

T K = 273 + T°C

T₁  = 273 + 20 = 293K

T₂ = 273 + 60 = 333K

now input the parameters;

V_{2}  = \frac{V_{1} }{T_{1} }  x T_{2}  = \frac{600}{293 }  x 333

 V₂ = 682mL

learn more:

Gas laws brainly.com/question/2438000

#learnwithBrainly

 

8 0
3 years ago
What environmental factors do aquarium designers need to consider?
wolverine [178]

Answer:

‍♀️mmmmmmmmmmmmmmmmm

3 0
3 years ago
Other questions:
  • What are 3 ways Venus is more like earth than any other planet​
    15·1 answer
  • Classify each of the following substances:
    5·1 answer
  • A certain skin lotion is a fine mixture of water and various oils. This lotion is cloudy and cannot be separated into oil and wa
    12·1 answer
  • One of the wavelengths of light emitted by hydrogen atoms is 6.56 x 10-7 m. Calculate the Energy.
    6·1 answer
  • Why aren't alkali metals found in pure form?
    10·1 answer
  • What is the formula for germicide that is sufficient to kill blood-borne pathogens?
    8·1 answer
  • What is the ph of a 0.45 m solution of aniline (c6h5nh2)? (pkb  9.40)?
    14·1 answer
  • The process by which water is moved and changed through the earth is called
    7·1 answer
  • Water is thee what? Please answer ASAP!
    5·1 answer
  • If the gas begins at the conditions described in Trial 1, determine the volume of the gas at STP.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!