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3 years ago

A __________ has distinct properties and composition that never vary.

Chemistry

2 answers:

hodyreva [135]3 years ago

5 0

Answer :
C) pure substance

aleksley [76]3 years ago

3 0

The answer woulda be C - Pure substance

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Electron configurations of bromine short and long

nekit [7.7K]

Explanation:

short electronic configuration of bromine

[Ar] 3d¹⁰ 4s² 4p⁵

long electronic configuration of bromine

1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁵

6 0

3 years ago

The figure below shows a walkway with a handrail. Angle is the angle between the walkway and the horizontal, while angle is the

nikklg [1K]

The angles as shown are supplementary angles because the add up to 180 degrees.

<h3>What are supplementary angles?</h3>

Two angles are said to be supplementary if they add up to 180 degrees. Now we know that the sum of angles on straight line is 180 degrees. If we look at the image as shown in the image attached, we can see that the angles lie on a straight line.

As such, we can conclude that the angles as shown are supplementary angles because the add up to 180 degrees.

Learn more about supplementary angles:brainly.com/question/13045673

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3 0

2 years ago

A 1.00-L flask was filled with 2.00 moles of gaseous and 2.00 moles of gaseous and heated. After equilibrium was reached, it was

Bogdan [553]

Answer:

2.35

Explanation:

<em>A 1.00-L flask was filled with 2.00 moles of gaseous SO₂ and 2.00 moles of gaseous NO₂ and heated. After equilibrium was reached, it was found that 1.21 moles of gaseous NO was present. Assume that the reaction </em>

<em>occurs under these conditions. Calculate the value of the equilibrium constant, K, for this reaction.</em>

<em />

Step 1: Calculate the molar concentrations

Since the reaction takes place in a 1.00 L flask, the molar concentrations are:

[SO₂]i = 2.00 M

[NO₂]i = 2.00 M

[NO]eq = 1.21 M

Step 2: Make an ICE chart

SO₂ + NO₂ ⇌ SO₃ + NO

I 2.00 2.00 0 0

C -x -x +x +x

E 2.00-x 2.00-x x x

Step 3: Calculate the concentrations at equilibrium

The concentration of NO at equilibrium is 1.21 M. Then, x = 1.21.

[SO₂]eq = 2.00-1.21 = 0.79 M

[NO₂]eq = 2.00-1.21 = 0.79 M

[SO₃]eq = x = 1.21 M

[NO]eq = x = 1.21 M

Step 4: Calculate the value of the equilibrium constant, K, for this reaction

K = [SO₃] × [NO]/[SO₂] × [NO₂]

K = 1.21²/0.79² = 2.35

6 0

3 years ago

Which of the following are associated with a rock's chemical composition? Select all that apply.

ZanzabumX [31]

Will you help me after?

4 0

3 years ago

List of 3 physical properties of tin foil

evablogger [386]

Solid, ductile, and malleable. Ductile means it can conduct heat, and malleable means it can be shaped differently. hope this helps

4 0

4 years ago

Read 2 more answers