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
topjm [15]
2 years ago
5

What are the coefficients that would balance this equation _____NaOH+____H2CO3-Na2CO3+_____H2O

Chemistry
1 answer:
FromTheMoon [43]2 years ago
4 0
I don’t see any equal signs to make it an equation. Am I missing something?
You might be interested in
Many plants obtain glucose through the process of ___
ryzh [129]

Answer:

vb

Explanation:

b

8 0
3 years ago
Read 2 more answers
A certain amount of hydrogen peroxide was dissolved in 100. mL of water and then titrated with 1.68 M KMnO4. What mass of H2O2 w
Stels [109]

Answer:

see explanation below

Explanation:

First to all, this is a redox reaction, and the reaction taking place is the following:

2KMnO4 + 3H2SO4 + 5H2O2 -----> 2MnSO4 + K2SO4 + 8H2O + 5O2

According to this reaction, we can see that the mole ratio between the peroxide and the permangante is 5:2. Therefore, if the titration required 21.3 mL to reach the equivalence point, then, the moles would be:

MhVh = MpVp

h would be the hydrogen peroxide, and p the permanganate.

But like it was stated before, the mole ratio is 5:2 so:

5MhVh = 2MpVp

Replacing moles:

5nh = 2MpVp

Now, we just have to replace the given data:

nh = 2MpVp/5

nh = 2 * 1.68 * 0.0213 / 5

nh = 0.0143 moles

Now to get the mass, we just need the molecular mass of the peroxide:

MM = 2*1 + 2*16 = 34 g/mol

Finally the mass:

m = 0.0143 * 34

m = 0.4862 g

8 0
3 years ago
Explain specifically how an electron gives off light in an atom.
exis [7]

Answer:

Then, at some point, these higher energy electrons give up their "extra" energy in the form of a photon of light, and fall back down to their original energy level.

Explanation:

When properly stimulated, electrons in these materials move from a lower level of energy up to a higher level of energy and occupy a different orbital.

3 0
2 years ago
How does an atom become an atom of another element is
ivann1987 [24]
Can you give me the anwsers

3 0
3 years ago
A first-order decomposition reaction has a rate constant of 0.00440 yr−1. How long does it take for [reactant] to reach 12.5% of
mina [271]

Answer:

473 year

Explanation:

Using integrated rate law for first order kinetics as:

[A_t]=[A_0]e^{-kt}

Where,  

[A_t] is the concentration at time t

[A_0] is the initial concentration

Given:

To reach 12.5% of reactant means that 0.125 of [A_0] is decomposed. So,

\frac {[A_t]}{[A_0]} = 0.125

t = ?

\frac {[A_t]}{[A_0]}=e^{-k\times t}

0.125=e^{-0.00440\times t}

t = 473 year

8 0
3 years ago
Other questions:
  • In the following question, select the odd word from the given alternatives.
    5·1 answer
  • Write the number 345 in scientific notation, with the same number of significant figures:
    12·1 answer
  • Which is a possible result of rising ocean temperatures caused by global warming?
    5·1 answer
  • What is the main type of energy present in a cordless power saw?
    14·1 answer
  • A boy inflated a bunch of balloons while he was outside with an ambient temperature of 26oC. He then took the balloons inside hi
    11·1 answer
  • Which of the following is the correct ( unbalanced) equation for the reaction that takes place when solid phosphorus combines wi
    12·1 answer
  • Argon, which comprises almost 1 percent of the atmosphere, is approximately 27 times more abundant than CO2 but does not contrib
    13·1 answer
  • How many grams are in 2.38 moles of AlCl₃?<br> please
    11·1 answer
  • Predict what would happen if plants disappear?
    9·1 answer
  • How would the electron configuration of nitrogen change to make a stable configuration?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!