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Novay_Z [31]
3 years ago
11

Which of the following is true about a system at equilibrium? a The concentration(s) of the reactant(s) is equal to the concentr

ation(s) of the product(s). b No new product molecules are formed. c The concentration(s) of reactant(s) is constant over time. d The rate of the reverse reaction is equal to the rate of the forward reaction and both rates are equal to zero. e None of the above (a-d) is true.
Chemistry
1 answer:
anyanavicka [17]3 years ago
6 0

Answer:

c The concentration(s) of reactant(s) is constant over time.  

Step-by-step explanation:

When the reaction A ⇌ B reaches equilibrium, the concentrations of reactants and products are constant over time.

a is <em>wrong</em>, because the concentrations of reactants and products are usually quite different.

b is <em>wrong</em>, because both product and reactant molecules are being formed at equilibrium.

d is <em>wrong</em>. The rates of the forward and reverse reactions are equal, but they are not zero.

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a cadillac escalade has a mass of 2.569 kg if it acceleratesat 4.65m/s what is the net force on the car
alexandr402 [8]
The Net Force is equal to the mass of the Object multiplied by the amount of Acceleration. Therefore, this creates an equation which looks like this:

F = Mass * Acceleration
F = 2.569 kg * 4.65 m/s
F = 11.95 N

Hopes this helps! 


5 0
3 years ago
A nitride ion has 7 protons, 8 neutrons, and 10 electrons. What is the overall charge on this ion?
xz_007 [3.2K]
The correct answer is: -3 (minus three)

Explanation:
To find the overall charge, we add electrons and protons. Make sure that you use the negative sign for an electron and positive sign for proton.

There are 10 electrons. It means the charge is "-10"
There are 7 protons. It means the charge is "+7"

Add both of them:

+7 - 10 = -3

Therefore the overall charge on this ion is -3.
7 0
3 years ago
Read 2 more answers
. Based on their position in the periodic table, predict which (of the two elements given) will be more reactive Circle your cho
Vladimir79 [104]

Explanation:

your anawer to the question is A. V and Rb

8 0
3 years ago
Select the correct answer.
pochemuha

Answer:

В.

The volume will decrease.

Explanation:

8 0
2 years ago
Which of the following represents positron emission? Select one: a. 3015P ---&gt; 3014Si + ___ b. 23892U ---&gt; 23490Th + ___ c
xxTIMURxx [149]
The simple trick which one can consider in such problem where it is asked for positron emission is :
<span>When the atomic number goes DOWN by one and mass number remains unchanged, then a positron is emitted.
</span>
<span>a.  </span>P^{30}_{15}  ----\ \textgreater \   Si^{30}_{14} + e^{0}_{1}^+
<span>
Here the atomic number decreases by one.

Similarly, options b and d are eliminated.

Option c is also not the answer.
For c, Count the atomic number on left side and compare it with right side. You will see it is 9 on left and 8 on right. Atomic no. did go down by 1. But the atomic mass is changed as well.

</span>
8 0
3 years ago
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