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3 years ago

Large air masses moving across and area are called _____?

Chemistry

2 answers:

faltersainse [42]3 years ago

6 0

Fronts. This includes cold fronts and warm fronts. Hoped this helped!

docker41 [41]3 years ago

6 0

Answer: Air masses

Explanation: An air mass is a large body of air that has about the same conditions throughout. For example, an air mass might have cold dry air. Another air mass might have warm moist air. The characteristics of an air mass depend on where the air mass formed. The air must stay over that location long enough to pick up those characteristics.

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7. (1 point) Colligative properties are directly related to the ____. *

Hitman42 [59]

<span>7. Colligative properties are directly related to the number of solute particles in a solution
8. chemical formula of sulfuric acid is H2SO4
9. the arhenius base in the choices is LiOH
10. </span><span>A Lewis base is a substance that can donate a pair of electrons
14. basic
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</span>

3 0

4 years ago

Sodium hydrogen carbonate, on heating, produces sodium carbonate, water and carbon dioxide.

RoseWind [281]

The mass of sodium hydrogen carbonate : 10.5 g

<h3>Further explanation</h3>

Given

1.5 dm' of CO₂

1 mol gas= 24 L at RTP(25 °C, 1 atm)

Required

the mass of sodium hydrogen carbonate

Solution

Decomposition reaction of Sodium hydrogen carbonate :

2 NaHCO₃ (s) ⇒ Na₂ CO₃ (s) + H₂ O(g) + CO₂ (g)

mol CO₂ :

$\tt mol=\dfrac{1.5}{24}=0.0625$

From the equation, mol ratio of NaHCO₃ : CO₂ (g) = 2 : 1, so mol NaHCO₃ :

$\tt 2\times 0.0625=0.125$

Mass NaHCO₃(MW=23+1+12+3.16=84 g/mol) :

$\tt mass=mol\times MW\\\\mass=0.125\times 84\\\\mass=10.5$

3 0

3 years ago

14. Which group below correctly list bases that completely dissociate in water?

ArbitrLikvidat [17]

Answer:14=D

15=B

16=D

17=C

18=A

19=D

Explanation: I did this and got a 100% °³°

7 0

2 years ago

How much does 2.17 mole of CU weigh?

Sergio [31]

Answer:

137.9035 g

Explanation:

1 mole of copper in grams is 63.55 g

2.17 mole of Cu weighs 137.9035 g (63.55x2.17)

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3 years ago

Why does ocean water near the equator warmer than the ocean water from the equator

Doss [256]

The water is warmer near the equator because the equator is closer to the sun. The suns rays will hit the water at a closer distance.

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3 years ago