What type of rock does preexisting rock become
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Metamorphism has also different types; the Contact metamorphism and the regional metamorphism. Contact metamorphism happens when magma is mixed with the solid rocks in the surroundings. For example when magma is starting to form igneous rock, it may increase that probability that it will reach the country’s rock and that’s affected the current formation of the rock. Regional metamorphism is also called as dynamic metamorphism. This happens when the pressure from underground makes the rock from above move and change into new rock formation
Clastic because clastic sedimentary rocks are made up of pieces of pre existing rocks
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The corner where a perfume is initally sprayed has:A. Has no concentration of pefume particles.B. the process of diffusion.c. a lower concentration of perfume particles the the other corners of the room.D. a higher concentration of perfume particles the the other corners of the room.
the relative molecular mass of sodium hydroxide is 40. if 60 grams of sodium hydroxide are dissolved in water how many moles will there be in the solution?
Can anyone please help answer this chemistry question?
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sodium chloride is a compound that is stable because its constituent elements namely chlorine and sodium have formed ionic bonds with each other and their outer energy shells are filled with 8 electrons.
Sodium on its own has 11 electrons. Two of these are in the 1st energy level, eight in the 2nd energy level and one in the 3rd energy level. This arrangement is highly unstable rendering the element sodium highly unstable and reactive. It will burst into flames immediately on exposure to air and can burn through human flesh if it comes into contact with it.
Chlorine at room temperature is a poisonous gas. It has 17 electrons in the arrangement 2:8:7 . The outermost shell has 7 electrons and so this element is fairly stable but will readily react with human lungs with fatal consequences.
So each of these two elements on their own are deadly, but when the two react together, sodium gives up its single electron on the outer energy shell to chlorine which readily accepts it and fills its outer shell to make 8 forming ionic bonds and is thus the two are completely stable and cannot explode or react in any other way because the outer shell of each of them is now filled with 8 electrons.
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Answer: Option (a) is the correct answer.
Explanation:
In order to maintain a neutral charge the number of protons must be equal to the number of electrons.
For example, in a neutral carbon atom the atomic number or number of protons is 6. Also, number of electrons present in carbon atom will be 6.
Thus, we can conclude that out of the given options for elements to maintain a neutral charge number of electrons and protons must be equal.
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Answer: 14.7 L of oxygen gas at 25 degrees celsius and 1.04 atm is needed for the complete combustion of 5.53g of propane
Explanation:
According to avogadro's law, 1 mole of every substance occupies 22.4 L at NTP, weighs equal to the molecular mass and contains avogadro's number of particles.
According to stoichiometry :
1 mole of propane requires 5 moles of oxygen
Thus 0.125 moles of propane require= moles of oxygen
According to the ideal gas equation:'
P = Pressure of the gas = 1.04 atm
V= Volume of the gas = ?
T= Temperature of the gas = 25°C = 298 K
R= Gas constant = 0.0821 atmL/K mol
n= moles of gas= 0.625
Final answer:
To find the volume of oxygen gas needed for the complete combustion of propane at given conditions, use stoichiometric calculations based on the balanced chemical equation and apply the ideal gas law.
Explanation:
The question is asking for the volume of oxygen gas required for the complete combustion of a given amount of propane at a specified temperature and pressure. To solve this, stoichiometry must be used along with the ideal gas law. The balanced chemical equation for the combustion of propane (C3H8) is:
C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(l)
This equation indicates that one mole of propane reacts with five moles of oxygen. First, calculate the moles of propane by dividing the given mass of propane by its molar mass. Then, use the stoichiometric relationship from the balanced equation to find the moles of oxygen needed. Finally, apply the ideal gas law (PV=nRT) to calculate the required volume of oxygen at the given conditions (remembering to convert temperature to Kelvin and pressure to atm if necessary).
Learn more about Stoichiometry here:
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B. does not occur naturally
C. is a naturally occurring process
D. needs to be reversed to save the planet