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fomenos
3 years ago
9

Chao is thinking about doing a project on plate tectonics for the school science fair. Which design would best relate to how the

movement in the Earth’s mantle is related to plate motion?
a pot of boiling water to which Chao will add food coloring to show the movement of the water
a flat shallow pan filled with a thick liquid heated by a hot plate with thick wooden blocks on top of the liquid
a flat shallow pan filled with small metal beads topped by an assembled puzzle that is shaken from side to side
a flat shallow pan filled with a thick liquid that can be heated by a hot plate with pieces of a thin plastic sheet floating on top of the liquid
Chemistry
2 answers:
tatuchka [14]3 years ago
6 0

Answer:

d

Explanation:

alekssr [168]3 years ago
5 0

The correct answer is option <u><em>D) a flat shallow pan filled with a thick liquid that can be heated by a hot plate with pieces of a thin plastic sheet floating on top of the liquid.</em></u>

I just did the quiz and got it right!

Hope this helps and have a gr8 day buddies <3

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V2 = (P1 × V1 × T2) (P2 × T1) A gas with a beginning pressure of 2 atm at a temperature of 300 K has a volume of 20 ml. What wil
rusak2 [61]

6.6ml will be the new volume if the pressure increases to 4 atm and the temperature are lowered to 200 K.

<h3>What is an ideal gas equation?</h3>

The ideal gas law (PV = nRT) relates the macroscopic properties of ideal gases. An ideal gas is a gas in which the particles (a) do not attract or repel one another and (b) take up no space (have no volume).

Given data:

V_1=20 ml

T_1=3

P_1=2 atm

T_2=200 K

P_2=4 atm

V_2=?

Using equation:

V_2 = \frac{P_1 X V_1 XT_2}{P_2 X T_1}

V_2 =\frac{2 atm  X 20 ml X200 K}{4 atm  X 300 K}

V_2 = 6.6 ml

Hence, 6.6ml will be the new volume if the pressure increases to 4 atm and the temperature are lowered to 200 K.

Learn more about the ideal gas equation here:

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6 0
2 years ago
A quantity of gas occupies a volume of 804 mL at a temperature of 27 °C. At what temperature will the
irga5000 [103]

Answer:

T₂ = 150 K

Explanation:

Given data:

Initial volume of gas = 804 mL

Initial temperature = 27°C (27+273=300 K)

Final temperature = ?

Final volume = 402 mL

Solution:

The given problem will be solve through the Charles Law.

According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

Now we will put the values in formula.

V₁/T₁ = V₂/T₂

T₂ = V₂T₁/V₁  

T₂ = 402 mL × 300 K / 804 mL

T₂ = 120,600 mL.K / 804 mL

T₂ = 150 K

3 0
2 years ago
Pls help one chemistry question :/
jolli1 [7]

Answer:

the anserw should be 665KJ

8 0
2 years ago
Which of the following organisms carry out photosynthesis?
andre [41]
Plants, algae, and a group of bacteria called cyanobacteria are the only organisms capable of performing photosynthesis. They use light to manufacture their own food, they are called photoautotrophs (literally, “self-feeders using light”).
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2 years ago
What makes the geometry of the tin(4) hydride to have a grater stability?
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