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arlik [135]
3 years ago
9

irregular Galaxy: appear as _________________ , _________________ shaped “blobs”; very active areas of star formation

Chemistry
1 answer:
marusya05 [52]3 years ago
7 0

Answer: They are typically smaller than spiral galaxies.

Some show evidence for prior collision or close encounter with another galaxy.

They exhibit vigorous star-forming activity.

Irregular galaxies are typically smaller than spiral or normal ellipticals, of irregular form, and without spiral arms. Irr I galaxies are often characterized by lots of gas, dust, and associated star formation. Irr II galaxies have forms that indicate prior collisions or close encounters with other galaxies. Irregular galaxies are one of the most common types of galaxies.

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Which of the following correctly applies to a reaction mechanism?1. The elementary steps must sum to the overall reaction.2. The
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A, B and D

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Which part of dalton theory did thomson finding dispute
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3 years ago
A cleaning solution has a hydroxide ion concentration of 2.5 x 104 mol/L. Which of the following
devlian [24]

A cleaning solution with an OH⁻ concentration of 2.5 × 10⁻⁴ mol/L, has a pH of 10.4 and is basic (options b and c).

<h3>How can we determine the acidity or basicity of a solution?</h3>
  • If pH < 7, the solution is acid.
  • If pH = 7, the solution is neutral.
  • If pH > 7, the solution is basic.

  • Step 1. Calculate the pOH of the solution.

The hydroxide ion concentration is 2.5 × 10⁻⁴ mol/L.

pOH = -log [OH⁻] = log (2.5 × 10⁻⁴) = 3.6

  • Step 2. Calculate the pH of the solution.

We will use the following expression.

pH + pOH = 14

pH = 14 - pOH = 14 - 3.6 = 10.4

Since pH > 7, the solution is basic.

A cleaning solution with an OH⁻ concentration of 2.5 × 10⁻⁴ mol/L, has a pH of 10.4 and is basic (options b and c).

Learn more about pH here: brainly.com/question/172153

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