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yulyashka [42]
3 years ago
13

Are air masses and fronts the same thing?

Chemistry
1 answer:
Lorico [155]3 years ago
3 0
The correct awnser is yes, hope this helps
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The mass of .10 moles of iron is:
Stels [109]

Answer:

<em>so mass in gram=560grams</em>

Explanation:

number of moles=10moles

molar mass=56grams/moles

mass in gram of Fe=?

as we know that

number of moles=\frac{mass in gram}{molar mass}

<em>evaluating the formula</em>

<em>number of moles×molar mass=mass in gram</em>

<em>mass in gram=10moles×56grams/moles</em>

<em>mass in gram=560grams</em>

<em>i hope this will help you :)</em>

8 0
4 years ago
Read 2 more answers
What is responsible for the whistling sound that often accompanies fireworks?
liq [111]
The crackling sound Is mainly to do with chemistry, The fireworks are filled with lead oxide, which turns into lead atoms as the firework explodes and heat up—— whistling sounds, the whistle is down to the tube being narrow one, thus rockets make a whistling noise
6 0
3 years ago
What's the balanced equation for magnesium and hydrochloric acid?
Roman55 [17]
Mg + 2 HCl ------> MgCl₂ +H₂O
6 0
4 years ago
You are given the following information: mass = 48 g; volume=24 cm. What is the density of this substance?
GaryK [48]

Answer:

Density = 0.0035 g/cm³

Explanation:

The density equation looks like this:

Density (g/cm³) = mass (g) / volume (cm³)

You have been given both the mass and volume. However, the given volume is not in the correct units. To convert cm to cm³, you should simply raise the given volume to the power of 3.

24 cm  =  (24 cm)³  =  24³cm³  =  13,834 cm³

Now, you can plug you mass and volume into the equation and solve for density. The final answer should have 2 sig figs to reflect the given values.

Density = mass / volume

Density = 48 g / 13,824 cm³

Density = 0.00347 g/cm³

Density = 0.0035 g/cm³

6 0
2 years ago
2.00 L of nitrogen gas at a temperature of 210 K are cooled down until the new volume is 1.25 L. If the pressure and number of g
BabaBlast [244]

Answer:

131 K

Explanation:

The only variables are volume and temperature, so we can use Charles' Law:

V1/T1 = V2/T2

Data:

V1 = 2.00 L; T1  = 210 K

V2 =  1.25 L; T2 = ?

Calculation:

2.00/210 = 1.25/T2

Multiply each side by the lowest common denominator (210T2)

2.00T2 = 1.25 ×210

2.00T2 = 262.5

       T2 = 262.5/2.00 = 131 K

The gas was cooled to 131 K.

6 0
4 years ago
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