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Helen [10]
3 years ago
12

Answer truthfully:))​

Chemistry
1 answer:
castortr0y [4]3 years ago
8 0
I’m not sure...

A to B : the motion is increasing so the velocity is increasing as well and you can calculate it with the slope.
B to C : the motion is constant. So the velocity is 0
C to D : the motion is decreasing so the velocity is decreasing as well.

Hope you will understand bc English is not my first language....
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Consider this reaction:
dedylja [7]

Answer:

0.13 M ( 2 s.f)

Explanation:

2Cl2O5 (g)-->2Cl2(g) +5O2 (g)

rate= (17.4 M -1 .s -1 ) [Cl2O5]2

From the rte above, we can tell that our rate constant (k)  = 17.4 M -1 .s -1

The units of k tells us this is a second order reaction.

Initial Concentration  [A]o = 1.46M

Final Concentration  [A] = ?

Time = 0.400s

The integrated rate law for second order reactions is given as;

1 / [A] = (1 / [A]o) + kt

1 /  [A] = [ (1/ 1.46) + (17.4 * 0.4) ]

1 /  [A] = 0.6849 + 6.96

1 /  [A] = 7.6496

[A] = 1 / 7.6496

[A] = 0.13073 M ≈ 0.13 M ( 2 s.f)

8 0
3 years ago
What is occurring when reactants are mixed and heated and liquid collects in the sidearm of the apparatus
olga55 [171]

When reactants are mixed and heated and liquid collects in the sidearm of the apparatus, a chemical reaction is occurring.

<h3>What is a chemical reaction?</h3>

A chemical reaction is said to occur when reactants are combined to form products. We must note that the formation of products is evidenced by;

  • Appearance of a liquid
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  • Appearance of a solid

Hence,  when reactants are mixed and heated and liquid collects in the sidearm of the apparatus, a chemical reaction is occurring.

Learn more about chemical reaction:brainly.com/question/22817140

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4 0
2 years ago
Why are car crashes more dangerous at higher speeds than at lower speeds
igomit [66]
The impact of speed and velocity at greater speeds affects the car much greater than at slower speeds due to impact and timing and velocity and speed.
7 0
3 years ago
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Find the hydrogen ion concentration of a saturated solution of calcium hydroxide whose ph is 13. 1
salantis [7]

The pH of the solutions is 12.67.  

     

<h3>What is pH of a Solution?</h3>

pH is the measurement of how acidic or basic a solution is. The range of pH values is from 0 to 14. Lower pH values mean higher acidity, while higher pH means higher basicity. If the pH value is equal to 7, then the solution is neutral.

To calculate the pH of the solution, a few approaches are possible. Here, the pOH of the solution is calculated first using the molar concentration of  OH^{-1} ions. Because pH + pOH = 14, the pH of the solution can then be calculated by subtracting pOH from 14.

Because 2 moles of OH^{-1} ions are formed per mole of Ca(OH)_{2}dissolved, the pOH of a saturated Ca(OH)_{2} solution at  20^{.C} is,  

Concentration (C_{OH}) of OH^{-1} ions,

          C_{OH}   = 0.02335 mol Ca(OH)_{2}/L  X 2 mol OH^{-1} /1 mol Ca(OH)_{2}

            C_{OH} = 0.0467 mol OH^{-1}/L

*pOH of saturated Ca(OH)_{2} solution,

                                   pOH = -log [C_{OH}]

                                   pOH = -log [0.0467 mol OH^{-1}/L ]            

                                  pOH = 1.33  

*pH of saturated Ca(OH)_{2} solution,

                                   pH = 14 - 1.33

                                   pH = 12.67

Hence, the pH of the solutions is 12.67.

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4 0
2 years ago
Which particle has the most energy?
Bess [88]

Answer:

water energy yes y *jjjjjjjjjj

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