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3 years ago

1. Why is severe weather associated with low pressure systems?

2 answers:

8 0

1) low pressure systems tend to result in unsettled weather and may present clouds high winds and precipitation. As low pressure intensifies storms or hurricane may be formed

KonstantinChe [14]3 years ago

6 0

1. because the air continues to cool and the water vapor may condense into precipitation, which results in unsettled weather

2. air is more dense in a region of high pressure, so the air pushes toward less dense regions. the air begins to warm as it descends, gets rid of the formation of clouds

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How many inches are in 25.8 cm

NeTakaya

Answer:

10.1574803 inches

Explanation:

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3 years ago

Which of the following contains The greatest number of representative particles: 1 mole of water molecules, 1 mole of copper ato

Crazy boy [7]

Answer:

1 mole of sodium chloride ions

Explanation:

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2 years ago

using the knowledge of the structures of argon and chlorine. Explain why they are both gases at room temperature ?

aleksley [76]

Because at atmospheric pressure the boiling point is below room temperature, just like Oxygen, Nitrogen etc

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3 years ago

How many molecules are in 5.50 grams of AgNO3?

mixas84 [53]

Answer:

1.95*10²² molecules are in 5.50 grams of AgNO₃

Explanation:

Being the molar mass of the elements:

Ag: 107.87 g/mole
N: 14 g/mole
O: 16 g/mole

then the molar mass of the compound is:

AgNO₃: 107.87 g/mole + 14 g/mole + 3*16 g/mole= 169.87 g/mole

Then you can apply the following rule of three: if 169.87 grams of the compound are present in 1 mole, 5.50 grams will be present in how many moles?

$moles=\frac{5.50 grams*1 mole}{169.87 grams}$

moles= 0.0324

Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023*10²³ particles per mole. Avogadro's number applies to any substance.

You can apply the following rule of three: if by definition of Avogadro's Number 1 mole of the substance contains 6.023 * 10²³ molecules, 0.0324 moles how many molecules will it have?

$molecules=\frac{0.0324 moles*6.023*10^{23} molecules}{1 mole}$

molecules=1.95*10²²

<u><em>1.95*10²² molecules are in 5.50 grams of AgNO₃</em></u>

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2 years ago

What causes magnetic force?

Len [333]

Answer:

Explanation:

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3 years ago