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Tema [17]
3 years ago
6

A bicyclist pedaling up a Hill. What type of energy potential or kinetic?

Chemistry
1 answer:
Vaselesa [24]3 years ago
4 0
The correct answer is Kinetic energy
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Sodium carbonate is a reagent that may be used to standardize acids in the same way you used KHP in this experiment. In such a s
Mice21 [21]

Answer:

M = 0.1825 M

Explanation:

To do this, let's write the equation again:

Na₂CO₃ + H₂SO₄ ---------> H₂O + CO₂ + Na₂SO₄

As we can see, the equation is already balanced and we can also see that the mole ratio between the acid and the carbonate is 1:1, this means that the moles of the acid, would be the same moles of the carbonate, therefore, we can use the following expression:

M₁V₁ = M₂V₂ (1)

1: Is the carbonate

2: is the acid

To get the concentration of the acid, we need to calculate the moles of the carbonate used. This can be done using the molecular mass of the sodium carbonate, which is 105.9888 g/mol, so the moles:

n₁ = 0.512 / 105.9888 = 0.0048 moles

Now that we have the moles, we can use (1) and calculate the concentration of the acid.

We know that:

n₁ = M₁V₁ (2)

Replacing in (1) we have:

n₁ = M₂V₂

M₂ = n₁ / V₂ (3)

Now all we have to do is replace the values and solve for the concentration:

M₂ = 0.0048 / (0.02630)

<h2>M₂ = 0.1825 M</h2><h2>This is the concentration (molarity) of the H₂SO₄</h2>
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3 years ago
Use the periodic table to complete each nuclear fusion equation.
Verdich [7]

Answer: A:5 B:2 C:15 D:8 E:O

Explanation:

just checked on edg

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3 years ago
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What is the average binding energy per nucleon for a U-238 nucleus with a mass defect of 0.184 amu? (1 amu= 1.66 x 10-27 kg; 1 J
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add all the number and find the average then subtract the mass defect and then you will get your answer

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Which of these elements is the most reactive?<br> potassium<br> calcium<br> titanium<br> scandium
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Answer:

Scandium is the most reactive

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Define Saturated Solution. What happens as a saturates solution cools?
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Saturated solution is a solution in which no more solute can be dissolved in the solvent. When saturated solution cools, the solution began precipitate from the solution, because under lower temperature, usually, less amount solute can be dissolved in the solvent.

8 0
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