in kilometers how much larger is the distance around the earth from east to west than the distance from north to south
Answers
The distance around the earth from east to wester than the distance from north to south is 24,859.73 kilometers. It is 67.3 kilometers apart.
What is distance ?
Distance is a measurement of how far apart two things or points are, either numerically or occasionally qualitatively. Distance can refer to a physical length in physics or to an estimate based on other factors in common usage.
The size or extent of the displacement between two points is referred to as distance. Keep in mind that the distance between two points and the distance traveled between them are not the same. The length of the entire journey taken to get from one point to another is the distance traveled.
Both of these numbers are quite close to the recognized modern estimates for the Earth's diameter and radius, which have since been determined by orbiting spacecraft and are 40,070 km and 6378 km, respectively.
Thus, The distance around the earth from east to wester than the distance from north to south is 24,859.73 kilometers.
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Related Questions
The reaction between NaOH(aq) and H2SO4(aq) was studied in a constant-pressure calorimeter: 100.0 mL portions of 1.00 M aqueous NaOH and H2SO4, each at 24.0C, were mixed. The volume of the mixture was 200.0 mL. The maximum temperature achieved was 30.6C. Neglect the heat capacity of the calorimeter and the thermometer, and assume that the solution of products has a density of 1.00 g/mL and a specific heat capacity of 4.18 J/(g·K). Calculate H, the heat (enthalpy) of reaction, in kJ per mole of acid. (Hint: You may not have the equivalent amounts of NaOH and H2SO4 in this experiment.)
An excellent tool to gauge the reliability of any theory is its capacity to generate correct? a.models b.predictions c.data d.hypotheses.
In terms of molecular motion, why does an increase in pressure lead to an increased solubility of a gas?
The smallest part of an element that can still be identified as that element is a(n) _____. (A) molecule (B) proton (C) electron (D) atom
Answers
Answer: B. A great deal of heat must be absorbed by water to break hydrogen bonds and allow molecules to move farther apart.
Explanation:
Vaporization is a physical process where liquid state changes to gaseous state.
Water molecules are bonded by strong hydrogen bonding between the hydrogen atom and the electronegative oxygen atom. Thus water molecules present on the surface are strongly attracted by the molecules present below the surface.
Thus as liquid state has to be changed to gaseous state, the heat must be supplied and the reaction will be endothermic.The heat is used to break the inter molecular forces or the hydrogen bonds present in water to convert them to randomly moving gaseous state.
B) Water would be able to dissolve all ionic compounds.
C) Water would not expand when it freezes.
D) Water would not exist on Earth.
Answers
The hydrogen bond is a secondary bond formed between a hydrogen (attached to an highly electronegative element ,: F, O or N) and another atom of an highly electronegative element ,: F, O or N.
In case of water hydrogen bond helps water
a) to dissolve certain substances which can make hydrogen bond
b) it makes it liquid and room temperature unlike H2S which is a gas at room temperature due to absence of hydrogen bond
c) higher volume and low density of ice as compared to liquid water. Due to hydrogen bond ice forms open cage like structure which increases its volume and decreases its density. Thus water expands on freezing
So in absence of hydrogen bond Water would not expand when it freezes.
Answers
If we have 3.50 moles of hydrogen and 5.00 moles of nitrogen to produce ammonia, 39.66g ammonia is produced.
What is mole concept?
Avogadro's number is the number of units in one mole of any substance and equals to 6.02214076 × 10²³. The units can be electrons, atoms, ions, or molecules.
No. of moles is defined as a particular no. of particles that we can calculate with the help of Avogadro’s number.
Mass of a particular product is also find out by stoichiometry of a reaction as per the no. of mole given in the reaction.
Given,
3H₂ + N₂ --> 2NH₃
3.50 moles of hydrogen
5.00 moles of nitrogen
Limiting reagent for the reaction is H₂.
3 moles of H₂ produce 2 moles NH₃
1 moles of H₂ produce 2/3 moles NH₃.
3.5 moles of H₂ produce (2÷3)×3.5 moles NH₃ = 2.33 moles
1 mole of NH₃ = 17g of NH₃
2.33 mole of NH₃ = 39.66g of NH₃
Therefore, If we have 3.50 moles of hydrogen and 5.00 moles of nitrogen to produce ammonia, 39.66g ammonia is produced.
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3H2 + N2 --> 2NH3
3.5 moles H2 (2 moles NH3/3 moles H2) (17 grams NH3/1 mole NH3) = 40 grams NH3
Answers
Water stored in a solid form has to be in an environment with temperatures lower than or equal to 32 degrees Fahrenheit.
In your home, a freezer would be a place to find solid water.
In the world, tundra's and arctic regions are places where you could find solid water.
In space solid water can be found in many places, for example, Saturn's rings are comprised mostly of Ice.
You can find water stored as a gas in the atmosphere.
You can find water stored as a solid in the Glaciers.
For PLATO Users
The Cycle And Movements Of Water Link Below
a pure substance because it is an element.
an impure substance because it is chemically combined.
an impure substance because it is a mixture.
Answers
Answer is: a pure substance because it is a compound.
Pure substance is made of only one type of atom or only one type of molecule, it has definite and constant composition with distinct chemical properties.
Emerald (beryl) is chemical compound (beryllium aluminium cyclosilicate) with the chemical formula Be₃Al₂(SiO₃)₆. Pure beryl is colorless.
An emerald can be described as an impure substance because it is a mixture. Therefore, option D is correct.
The chemical formula for emerald is Be₃Al₂(SiO₃)₆, indicating that it is a compound composed of beryllium (Be), aluminum (Al), and silicon (Si) atoms bonded to oxygen (O) atoms.
However, emeralds can also contain impurities or trace elements such as chromium (Cr) or vanadium (V), which give them their characteristic green color.
These impurities or trace elements are present in small amounts and are incorporated into the crystal structure of the emerald.
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By breaking a carbon double bond and adding chlorine.
By removing hydrogen because of chlorine’s attraction to hydrogen’s nucleus.
Chlorine and ethene do not react spontaneously.
Answers
Explanation : When chlorine reacts with ethene it forms dicholoroethane. It reacts spontaneously to form product. The halogenation reaction takes place in ethene across the double bonds and removes the hydrogen from ethene and two chlorine atoms gets attached in their place; which results in dichloroethane as the product.
Answer: option B m
Explanation:
It is an example for Electrophilic Addition of Halogen. And addition of Cl2 to Alkene is always Trans Addition. That means both cl atoms should add opposite side of double bond and results vicinal 1,2-dichloroethane as a product.
CH2=CH2 + Cl2-------> ClCH2CH2Cl