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zepelin [54]
2 years ago
5

Draw to scale size a model of the earth's crust in mine-craft like the pictures below take pictures of different angles​ and vid

eo tutorial on how you made it

Chemistry
1 answer:
Nezavi [6.7K]2 years ago
3 0

To build a model of the Earth, several physical aspects must be taken into account, such as the composition of its interior and its external appearance.

<h3>How to draw a scale model of the Earth?</h3>

To draw a scale model of the Earth we must take into account different aspects so that it has the most similar appearance to our planet.

To draw the Earth we must know that the shape of our planet is not a sphere but rather a geoid that has irregularities and is flattened.

Additionally, we must take into account the physical characteristics such as:

  • The colors of the sea and the oceans.
  • The different mountain ranges.
  • The polar ice caps.
  • The shapes of the continents.
  • The inner layers.

Learn more about planet Earth in: brainly.com/question/93633

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How much faster does ethane (C2H6) gas travel compared to chlorine gas?
zimovet [89]

Answer:

\large \boxed{\text{54 $\, \%$ faster }}

Explanation:

v_{\text{rms}} \propto \sqrt{\dfrac{3RT}{M}

if temperature is constant.  

v_{\text{rms}} \propto \sqrt{\dfrac{1}{M}

if we are comparing two gases,

\dfrac{v_{2}}{v_{1}} = \sqrt{\dfrac{M_{1}}{M_{2}}}

Let chlorine be Gas 1 and ethane be Gas 2

Data:

M₁ =  70.91 g/mol

M₂ = 30.07 g/mol

Calculation

\begin{array}{rcl}\dfrac{v_{2}}{v_{1}} & = & \sqrt{\dfrac{M_{1}}{M_{2}}}\\\\& = & \sqrt{\dfrac{70.91}{30.07}}\\\\& = & \sqrt{2.358}\\\\& = & \mathbf{1.54}\\\end{array}\\\text{Ethane molecules travel at 1.54 times the speed of chlorine molecules}\\\text{or $\large \boxed{\textbf{54 $\%$ faster }}$ than chlorine molecules}

5 0
3 years ago
Determine the mass of CaCO3 required to produce 40.0 mL CO2 at STP. Hint use molar volume of an ideal gas (22.4 L)
cupoosta [38]

Answer:

m_{CaCO_3}=0.179gCaCO_3

Explanation:

Hello,

In this case, since the undergoing chemical reaction is:

CaCO_3(s)\rightarrow CaO(s)+CO_2(g)

The corresponding moles of carbon dioxide occupying 40.0 mL (0.0400 L) are computed by using the ideal gas equation at 273.15 K and 1.00 atm (STP) as follows:

PV=nRT\\\\n=\frac{PV}{RT}=\frac{1.00 atm*0.0400L}{0.082\frac{atm*L}{mol*K}*273.15 K})=1.79x10^{-3} mol CO_2

Then, since the mole ratio between carbon dioxide and calcium carbonate is 1:1 and the molar mass of the reactant is 100 g/mol, the mass that yields such volume turns out:

m_{CaCO_3}=1.79x10^{-3}molCO_2*\frac{1molCaCO_3}{1molCO_2} *\frac{100g CaCO_3}{1molCaCO_3}\\ \\m_{CaCO_3}=0.179gCaCO_3

Regards.

3 0
4 years ago
The protection of animals, plants, and natural resources
In-s [12.5K]

Answer:

The protection of animals, plants, and natural resources

D. conservation

(for science)

Explanation:

Brainlist plz

5 0
2 years ago
Read 2 more answers
Calculate the volume of a sample of iron that has a density of 6.8 g/mL and a mass of 6780 mg.
Veronika [31]

Answer:

m= 6780mg = 6.78g = 6.8g

d= 6.8g/ml

V= m/d

V= 1ml

8 0
3 years ago
4. Rank the listed elements from largest electronegativity at the top, to smallest electronegativity at
Burka [1]
1. Chlorine
2. Sulfur
3. Selenium
7 0
3 years ago
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