Answers
Answer:
:0
Explanation:
One second after the Big Bang, the universe was filled with neutrons, protons, electrons, anti-electrons, photons and neutrinos.Jun 17, 2017
Related Questions
A spontaneous reaction occurs
The [Fe(H₂O)₆]³⁺ complex requires a relatively small amount of energy to promote an electron from the t2g to the eg. Based on the UV data, predict the spin of this complex.
Ion Concentration 1. Which solution has the greatest [SO42-]: a) 0.075 M H2SO4 b) 0.15 M Na2SO4 c) 0.080 M Al2(SO4)3?
If 4.0 mol aluminum and 7.0 mol hydrogen bromide react according to the following equation, how many moles of hydrogen are formed and what is the limiting reactant?
Answers
Answer:
q
Explanation:
Answers
Answer:
123.41 g
Explanation:
Given that the ethyl alcohol produced is 11.0 % by volume.
It means that 1000 mL contains 110 mL of ethyl alcohol
Given that the volume is:- 725 mL
So,
Volume of ethyl alcohol = = 79.75 mL
Given that:- Density = 0.789 g/cm³ = 0.789 g/mL
So, Mass = Density*Volume = = 62.92 g
Calculation of the moles of ethyl alcohol as:-
Molar mass of ethyl alcohol = 46.07 g/mol
The formula for the calculation of moles is shown below:
Thus,
According to the reaction:-
2 moles of ethyl alcohol is produced when 1 mole of glucose reacts
Also,
1.37 moles of ethyl alcohol is produced when mole of glucose reacts
Moles of glucose = 0.685 Moles
Molar mass of glucose = 180.156 g/mol
Mass = Moles*Molar mass = = 123.41 g
Answers
Let us see the structure of ascorbic acid
As shown there is no COOH group however the OH group can lose a proton and forms conjugate base
The conjugate base formed is stabilized due to resonance
More the stability of conjugate base more the strength of acid
Hence ascorbic acid behaves as an acid
Answers
Explanation:
2NOBr(g) --> 2NO(g) 1 Br2(g)
Rate constant, k = 0.80
a) Initial concentration, Ao = 0.086 M
Final Concentration, A = ?
time = 22s
These parameters are connected with the equation given below;
1 / [A] = kt + 1 / [A]o
1 / [A] = 1 / 0.086 + (0.8 * 22)
1 / [A] = 11.628 + 17.6
1 / [A] = 29.228
[A] = 0.0342M
b) t1/2 = 1 / ([A]o * k)
when [NOBr]0 5 0.072 M
t1/2 = 1 / (0.072 * 0.80)
t1/2 = 1 / 0.0576 = 17.36 s
when [NOBr]0 5 0.054 M
t1/2 = 1 / (0.054 * 0.80)
t1/2 = 1 / 0.0432 = 23.15 s
Answer:
(a)
(b)
Explanation:
Hello,
(a) In this case, as the reaction is second-ordered, one uses the following kinetic equation to compute the concentration of NOBr after 22 seconds:
(b) Now, for a second-order reaction, the half-life is computed as shown below:
Therefore, for the given initial concentrations one obtains:
Best regards.
O B. move more quickly
O C. move more slowly
D. stop moving
Answers
Answer:
B. move more quickly
Explanation:
As a sample of matter is heated, we know that the particles begins to move more quickly.
This is because the temperature of a substance is directly proportional to the average kinetic energy of a system.
- As the temperature increases, the body gains more kinetic energy
- This is translated to the particles of the medium.
- Then they begin to move quickly and very fast enough.
Final answer:
Upon heating a sample of matter, the particles tend to move more quickly. This is because the increase in temperature boosts the kinetic energy of the particles, thereby making them move faster.
Explanation:
When a sample of matter is heated, it causes the particles of the matter to move more quickly. This phenomenon is due to the increase in temperature, which leads to an increase in the kinetic energy of the particles. Kinetic energy refers to the energy that an object possesses due to its motion. Hence, as heat supplies energy, it causes atoms and molecules in a matter to move faster. As a result, solids expand and liquids and gases become less dense as their particles spread out to absorb the heat.
Learn more about Kinetic Energy here:
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