2. Explain how conduction, convection and radiation all contribute to heating the Earth'ssurface and atmosphere.
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Answer: Conduction, radiation and convection all play a role in moving heat between Earth's surface and the atmosphere. Since air is a poor conductor, most energy transfer by conduction occurs right near Earth's surface. ... During the day, sunlight heats the ground, which in turn heats the air directly above it via conduction.
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Related Questions
What is the difference between a period and a group on the periodic table
If 6.49 mol of ethane (C2H6) undergo combustion according to the unbalanced equationC2H6 + O2 −→ CO2 + H2O ,how many moles of O2 is required?1. 27.792. 7.633. 8.44. 25.485. 12.6356. 21.0357. 23.88. 19.049. 22.71510. 26.775Answer in units of mol.
What is the relationship between concentration and rate of reaction
If an industrial worker knows that his chemical process is 87.3% efficient and he needs tocollect 100.0g of the product when all is said and done, what should his theoretical yieldbe (in grams)?
Answers
For, a atom in its neutral state has the same number of protons as electrons. Thatswhy, it has a neutral charge. The protons have a positive charge (1+); the elctrons have a negative charge(1-). So, the charges cancel out. Like, a atom has 11 electrons and 11 protons. See-
11 e- = -11
11 p+ = +11
Then,
And, if an atom has (2-) charge that means it has two extra electrons. Two more electron than the number of protons. It once had the same number of protons and electrons. Then two more electrons give it a (2-) charge. Thatswhy, if we subtract 2 from 12, we can get the number of protons.
We can calculate the number of protons as,
Okay, what's the proof? Want it?
We know there are 10 protons and 12 electrons. Let's see it.
Eureka! That's it. I got it. It's right.
AND ANOTHER QUESTION ARISES, If all atoms have the same number of protons and electrons then, when does the number of electron decrease or increase? How do the atoms come to have positive or negative charge?
Well, this happens because of ionic bonding. I can't explain all these stuff, right here. To obtain more information on bonding, search it on GOOGLE.
B. .ka
C. .us
D. .ca
Which of the following best describes spam?
A. A program that's not compatible with your browser
B. A program that will give your computer extra power
C. Electronic junk mail
D. Computer viruses
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Answer:
3,495.02
Explanation: TRY THAT FOR AN ANSWER
How many moles of water are produced when 2 moles of NH4 react with excess Oxygen gas?
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The moles of water are produced when 2 moles of NH4 react with excess Oxygen gas is 4 mole of H2O.
What is moles?
Moles are defined as a common unit used in science to measure vast numbers of extremely small things, such atoms, molecules, or other specific particles.
It can also be defined as a metric in chemistry that is used to describe a very high quantity of molecules, atoms, or particles.
Since we only have two moles of NH4, we switch out four for two.
2 NH4 + 3O2 --> 2NO + 4 H2O
As per the reaction, in order to produce 2 moles of NO2 and 4 moles of H2O, 2 moles of NH4 must react with 3 moles of oxygen gas.
Thus, the moles of water are produced when 2 moles of NH4 react with excess Oxygen gas is 4 mole of H2O.
To learn more about moles, refer to the link below:
#SPJ2
Now, on balancing the equation, we get 2 NH4 + 3O2 ---> 2NO + 4 H2O (law of conservation of mass)
thus, 2 moles of NH4 react with 3 moles of oxygen gas to produce 2 moles of NO2 and 4 moles of H2O.
Thus, we get 4 moles of H2O
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Answer:
B. by arranging the elements according to atomic number instead of atomic mass
Explanation:
i just took the test
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Answer: No, the given elements will not react.
Explanation:
Ionic bond is defined as the bond which is formed from the complete transfer of electrons from one atom to another atom. The atom which looses electrons is known as electropositive atom and it attains positive charge. The atom which gains electrons is known as electronegative atom and it attains negative charge. For Example: KBr
Covalent bond is defined as the bond which is formed by the sharing of electrons between the atoms forming a bond. No ions are present in the compound. For Example: HCl
We are given, two elements with their oxidation states:
As, both the ions are positive ion and thus, will not react to form any compound because like charges repel each other.
Hence, no, the given elements will not react.