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never [62]
3 years ago
10

When the air inside a school gets warmer (temperature increases), the molecules of air move faster and farther apart. True Or Fa

lse?
Chemistry
2 answers:
damaskus [11]3 years ago
6 0

Answer:

The answer is False

Explanation:

If you want a visual representation, take water. When its left at room temperature the molecules are moving but not very fast. If you bring that water to a boil, the molecules move a lot faster and get closes together. If you were to freeze that water inside a closed container you would see the water inside expand because the molecules grow further apart.

To answer the question, while the molecules do move faster, they do not move further apart.

Elodia [21]3 years ago
5 0
Answer: The answer is false
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Heat is added to a 200.-gram sample of H2O(s) to melt the sample at 0°C. Then the resulting H2O (image) is heated to a final tem
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You are given 200 grams of H2O(s) at an initial temperature of 0°C. you are also given the final temperature of water after heating at 65°C. You are required to get the total amount of heat to melt the sample. The specific heat capacity, cp, of water is 4.186 J/g-°C. Let us say that T1 = 0°C and T2 = 65°C. The equation for heat, Q, is  

Q = m(cp)(T2-T1)
Q = 200g(4.186 J/g-°C )(65°C - 0°C)
<u>Q = 54,418J</u>
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3 years ago
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Which of the following is included in the study of Geology?
finlep [7]
D: the composition of the materials that make up the planet
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3 years ago
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Carbon tetrachloride, CCl4, once used as a cleaning fluid and as a fire extinguisher, is produced by heating methane and chlorin
Elena-2011 [213]

Answer:

1.882 g

Explanation:

Data Given

mass of Cl₂ = 33.4 g

mass of CH₄ = ?

Reaction Given:

                       CH₄+ 4Cl₂ --------→ CCl₄ + HCl

Solution:

First find the mass of CH₄ from the reaction that it combine with how many grams of Chlorin.

Look at the balanced reaction

                    CH₄     +     4Cl₂ --------→ CCl₄ + 4HCl

                    1 mol        4 mol

So 1 mole of CH₄ combine with 4 moles of Cl₂

Now

convert the moles into mass for which we have to know molar mass of CH₄ and Cl₂

Molar mass of Cl₂ = 2 (35.5)

Molar mass of  Cl₂  = 71 g/mol

mass of Cl₂

                mass in grams = no. of moles x molar mass

                mass of Cl₂ = 4 mol x 71 g/mol

                mass of Cl₂  = 284 g

Molar mass of CH₄= 12+ 4(1)

Molar mass of CH₄= 16 g/mol

mass of CH₄

                mass in grams = no. of moles x molar mass

                mass of CH₄= 1 mol x 16 g/mol

                mass of CH₄ = 16 g

So,

284 g of Cl₂  combine with 16 g of methane ( CH₄ ) then how many grams of CH₄ is needed to combine with 33.4 g of Cl₂  

Apply unity Formula

                           284 g of Cl₂  ≅ 16 g of methane ( CH₄ )

                           33.4 g of Cl₂  ≅ X g of methane ( CH₄ )

By cross multiplication

                          X g of methane ( CH₄ ) = 16 g x 33.4 g / 284 g

                          X g of methane ( CH₄ ) = 1.88 g

1.882 g of methane (CH₄) will needed to combine with 33.4 g of Cl₂

So

methane (CH₄) = 1.882 g

5 0
3 years ago
In a science experiment, 10 tomato plants were given fertilizer in their water each week and 10 tomato plants were given plain w
Pani-rosa [81]
1 .the height of the plant
8 0
3 years ago
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A light has a frequency of 6.2 x 1016 Hz. What is the wavelength in meters?
Gemiola [76]

Answer:

λ =  0. 484 × 10⁻⁸ m

Explanation:

Given data:

Frequency = 6.2 × 10¹⁶ Hz

Wavelength = ?

Solution:

Formula:

Wavelength = speed of light / frequency

speed of light = 3 ×10⁸ m/s

λ = c / f

λ = 3 ×10⁸ m/s / 6.2 × 10¹⁶ s⁻¹

λ =  0. 484 × 10⁻⁸ m

7 0
4 years ago
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