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
bonufazy [111]
2 years ago
10

142Pm > 142 Nd + what is the answer to this equation

Chemistry
1 answer:
erastova [34]2 years ago
4 0

Explanation:

nnbbnmkmknn bnnnbbtbbbbn' nn' t

You might be interested in
At 2000°C, the equilibrium constant for the reaction below is Kc = 4.10 ´ 10–4 . If 0.600 moles of NO is placed in a 1.0-L react
erastova [34]

Answer:

At equilibrium, the concentration of N_{2 (g)} is going to be 0.30M

Explanation:

We first need the reaction.

With the information given we can assume that is:

N_{2 (g)} + O_{2 (g)} ⇄ 2NO_{(g)}

If there is placed 0.600 moles of NO in a 1.0-L vessel, we have a initial concentration of 0.60 M NO; and no N_{2 (g)} nor  O_{2 (g)} present. Immediately, N_{2 (g)} andO_{2 (g)} are going to be produced until equilibrium is reached.

By the ICE (initial, change, equilibrium) analysis:

I: [N_{2 (g)}]=0   ;     [O_{2 (g)} ]= 0    ; [NO_{(g)}]=0.60M

C: [N_{2 (g)}]=+x   ;     [O_{2 (g)} ]= +x    ; [NO_{(g)}]=-2x

E: [N_{2 (g)}]=0+x   ;     [O_{2 (g)} ]= 0+x   ; [NO_{(g)}]=0.60-2x

Now we can use the constant information:

K_{c}=\frac{[products]^{stoichiometric coefficient} }{[reactants]^{stoichiometric coefficient} }

4.10* 10^{-4} =\frac{(0.60-2x)^{2}}{(x)*(x)}

4.10* 10^{-4}= \frac{(0.60-2x)^{2}}{x^{2} }

4.10* 10^{-4} * x^{2}= (0.60-2x)^{2}}

\sqrt{4.10* 10^{-4} * x^{2}}= \sqrt{(0.60-2x)^{2}}}

0.0202 x =0.60 - 2x

2x+0.0202x=0.60

x=\frac{0.60}{2.0202}= 0.30

At equilibrium, the concentration of N_{2 (g)} is going to be 0.30M

3 0
2 years ago
Where two air masses and do not mix
yulyashka [42]
When two air masses meet together, the boundary between the two is called a weather front. At a front, the two air masses have different densities, based on temperature, and do not easily mix. One air mass is lifted above the other, creating a low pressure zone.
3 0
3 years ago
How do I describe an ion?
worty [1.4K]

Answer:

Explanation:

How do I describe an ion?

<h2>an ion is an atom that has had electrons added or taken away from it.</h2><h2>they do this in order to obtain a stable electronic configuration like their closest noble gas..see Periodic Table column 18 which is also column VIIIA</h2><h2>If they gain electrons, they are negative and are called</h2><h2>ANIONS</h2><h2>if they lose  electrons they are positive and are called</h2><h2>CATIONS  </h2><h2 />

5 0
3 years ago
How do scientist use radioactive decay to date fossils and artifacts
zhuklara [117]
Scientists use radioactive decay to date fossils and artifacts through a process called "carbon dating," which measures the amount of carbon still left in a dead object. The less carbon that exists, the longer that animal or plant as been dead. 
3 0
3 years ago
Is NaHCO3 a binary compound​
gladu [14]

Answer:

No

Explanation:

Binary compounds contain only 2 distinct elements.

For example magnesium oxide MgO is a binary compound.

NaHCO3 contains 4 distinct elements.

3 0
3 years ago
Other questions:
  • Which of the following is a correct formula unit? PbCl AlP Li3Al ClO
    14·2 answers
  • ANSWER FAST PLZ 25 POINTS!!!!!!!!!!!!!!!
    9·1 answer
  • How many points should be plotted when creating a scatterplot from the table of values below?
    13·1 answer
  • Imagine two solutions with the same concentration and the same boiling point, but one has ethanol as the solvent and the other h
    12·1 answer
  • Use the electron-transfer method to balance this equation:
    15·1 answer
  • Which body systems help to exchange oxygen and carbon dioxide?
    12·1 answer
  • :( plz help and can u guys help me with my math
    15·2 answers
  • The element in Group 14 Period 4 has how many neutrons and is it a metal, nonmetal, metalloid or noble gas.
    11·1 answer
  • Which of the following was not used as evidence to support
    12·1 answer
  • Describe how different environments support different<br> varieties of organisms
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!