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goldenfox [79]
3 years ago
15

Which words describe an air mass likely to be over the northern parts of the Pacific Ocean? wet and cold, warm and dry, cold and

dry, wet and warm?
Chemistry
2 answers:
liubo4ka [24]3 years ago
6 0

Over the northern parts of the Pacific Ocean, the Maritime Polar air mass exists. This means that the air mass likely to be over the northern parts of the Pacific Ocean would be wet and cold.

s2008m [1.1K]3 years ago
3 0

Answer:

wet and cold

Explanation:

An air mass blowing inland from the sea is usually wet and cold. This is because of the fact that it is saturated with water and cooled by rapid exchanges with the sea. Hence any time air is coming inland from the sea, we usually experiences cool moist breeze unlike air leaving the land and moving towards the sea which a is normally hot and dry.

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Chromium(III) oxide reacts with hydrogen sulfide (H2S) gas to form chromium(III) sulfide and water: Cr2O3(s) + 3H2S(g) → Cr2S3(s
Tpy6a [65]

Answer:

(a) 0.779 mol Cr₂O₃

(b) 118 g Cr₂O₃

Explanation:

Step 1: Convert 156 g Cr₂S₃ to moles

Cr Molar Mass - 52.00 g/mol × 2 = 104.00 g/mol

S Molar Mass - 32.07 g/mol × 3 = 96.21 g/mol

156 g Cr₂S₃ ÷ 200.21 g/mol = 0.779182 mol Cr₂S₃

Step 2: Find conversion from Cr₂S₃ to Cr₂O₃

1 mol Cr₂S₃ equals 1 mol Cr₂O₃

Step 3: Use Dimensional Analysis

0.779182 mol Cr₂S₃ · \frac{1 \hspace{2} mol \hspace{2} Cr_2O_3}{1 \hspace{2} mol \hspace{2} Cr_2S_3} = 0.779182 mol Cr₂O₃

0.779182 mol Cr₂O₃ ≈ 0.779 mol Cr₂O₃ (3 significant figures)

Step 4: Convert moles to grams

Cr Molar Mass - 52.00 g/mol × 2 = 104.00 g/mol

O Molar Mass - 16.00 g/mol × 3 = 48.00 g/mol

0.779182 mol Cr₂O₃ · 152.00 g/mol = 118.436 g Cr₂O₃

118.436 g Cr₂O₃ ≈ 118 g Cr₂O₃ (3 significant figures)

6 0
3 years ago
Explain the different principles that allow roller coasters to rip and roar around the tracks. In your response, include how ene
Jlenok [28]

Answer:

In the roller coasters the potential energy that is given is the gravitational potential energy, which this energy increases its value as the object moves away from the earth, that is to say, the more height the roller coaster acquires the more gravitational potential energy it will have, and Said train where people usually get on the roller coaster will descend or descend with greater acceleration.

This gravitational potential energy once the mountain begins to descend or descend is converted into kinetic energy

Explanation:

This that we wrote above is considering that the roller coaster does not have curved routes but rectilinear, in the case that it had curved routes, a force would be added in addition to those written that is the centripetal force, it is the same force that appears in the centrifuges or dryers of clothes or the same washing machine. This force, the centripetal force is the force that draws a moving object, in a curvilinear path, towards the center of the curvature.

8 0
3 years ago
Which statement correctly describes protons?
Dominik [7]
We don't know what statement you want us to choose from. But, protons have a positive charge, and they are what makes an atom a certain atom.
5 0
3 years ago
Read 2 more answers
Which three of the following indicate that a solid is being formed? 1) formation of a precipitate 2) formation of bubbles 3) for
kiruha [24]

Answer:

Formation of a precipitate

Explanation:

  • A precipitate is a compound in solid-state that is formed when two soluble or aqueous compounds or salts react during a precipitation reaction.
  • Precipitation reaction involves a reaction between two soluble salts or compounds to form a precipitate and an aqueous compound.
  • For instance, a reaction between potassium chloride and silver nitrate is a precipitation reaction.

    KCl(aq) + AgNO₃(aq) → KNO₃(aq) + AgCl(s)

  • AgCl is the precipitate.
  • All the other choices are indicators of a chemical reaction or a chemical change.
3 0
3 years ago
Read 2 more answers
Suppose 7.05 g of zinc iodide is dissolved in 150. mL of a 0.20M aqueous solution of potassium carbonate. Calculate the final mo
sasho [114]

Answer:

M=0.294M

Explanation:

Hello!

In this case, since the molarity of the iodide ion is computed by dividing the moles of iodide ions by the volume of solution in liters (0.150 L), we first need to compute the moles of zinc iodide (ZnI2) by using its molar mass and then using a mole ratio of 1 mol of zinc iodide to 2 mol of iodide ion:

n_{I^-}=7.05gZnI_2*\frac{1molZnI_2}{319.22 gZnI_2}*\frac{2molI^-}{1molZnI_2}=0.0442molI^-

Therefore, the resulting molarity turns out:

M=\frac{0.0442molI^-}{0.150L} \\\\M=0.294M

Best regards!

4 0
3 years ago
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