Answer: from the soup to the ice
Explanation: The heat energy from the soup truly transfers to the ice cube when you put it in a bowl of hot soup. An object with a greater temperature will always transfer heat to an object with a lower temperature. In this instance, the hot soup has a higher temperature than the ice cube due to its higher thermal energy content. The ice cube melts as a result of the heat energy moving from the soup to it, and the soup cools as a result.
To solve this we must be knowing each and every concept related to element. Therefore, "all of the noble gas elements except neon have 8 electrons in their outermost energy level" is a false element.
A chemical element represents a material that cannot be degraded chemically. Although chemical processes do not modify atoms, nuclear reactions can produce new elements.
Elements are classified according to the amount of protons they have. An element's atoms typically have the same amount of protons, but differing amounts of electrons or neutrons.
There are 118 recognized elements. Element 120.1 is being researched. When element 120 is created and validated, the periodic table must be updated to include it. A numerical subscript following an element in a chemical formula mean number of atoms. All of the noble gas elements except have 8 electrons in their outermost energy level.
Therefore, "all of the noble gas elements except neon have 8 electrons in their outermost energy level" is a false element.
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Answer:
Pb(NO3)2 + 2NaCl = PbCl2 + 2NaNO3
Explanation:
Lead nitrate is Pb(NO3)2
Sodium Chloride is NaCl
The basic reaction is:
Pb(NO3)2 + NaCl = PbCl2 + NaNO3
Now we need to balance the equation. Note that the lead nitrate contributes 2 (NO3) units, but there is only 1 NO3 on the product side. So start by adding a second NaNO3:
Pb(NO3)2 + NaCl = PbCl2 + 2NaNO3
Now we have 2 Na atoms on the right side, so add a "2" to the NaCl:
Pb(NO3)2 + 2NaCl = PbCl2 + 2NaNO3
This is starting to look good. Lets check the atom/unit counts on both sides of the equation:
Reactants Products
Pb 1 1
NO3 2 2
Na 2 2
Cl 2 2
The equation is now balanced. Pb(NO3)2 + 2NaCl = PbCl2 + 2NaNO3
B. It depends on how a substance was formed.
C. It is the same for every sample of every substance.
D. It depends on the amount of substance present.
An intensive property of matter is independent of the amount of substance present and is inherent to the material itself. Thus, the correct statement is 'It is the same for every sample of a single substance.' Examples of intensive properties include temperature, density, and color.
An intensive property of matter is a characteristic that does not change based on the amount of a substance. It is independent of the quantity of the substance present and is inherent to the material itself. Therefore, the statement which best describes an intensive property of matter would be 'It is the same for every sample of a single substance.'
Examples of intensive properties include temperature, density, and color. For instance, if you divide a gold bar in half, each half will have the same density and color as the original bar, because these properties are independent of the amount of substance present.
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Explanation :
As we know that the geometrical symmetry of the molecule and the polarity of the bonds both are equally important for determining the polarity of the molecule.
The molecule that has zero dipole moment that means it is a geometrical symmetric molecule and the molecule that has some dipole moment that means it is a geometrical asymmetric molecule.
As the molecule is symmetric, the dipole moment will be zero and the molecule will be non-polar.
As the molecule is asymmetric, the dipole moment will not be zero and the molecule will be polar.
Thus, we can say that the a symmetry molecule is non-polar in nature and an asymmetry molecule is a polar molecule.
sunlight
rain
bacteria
Answer:
The correct answer is option d: bacteria
Explanation:
Hello! Let's solve this!
Abiotic components are those that have no life and biotics are the factors that have life.
Let's see each option!
Nutrients: they have no life, they can be calcium, protasium, vitamins
sunlight: it has no life, it comes from the sun
rain: it has no life, it is condensed water and it falls to the earth in the form of drops
bacteria: they have life, they are cells so they are living beings.
We conclude that the correct answer is option d: bacteria
The theoretical yield of carbon dioxide can be calculated using the stoichiometric ratio in the balanced equation for the reaction. It is the amount of product that would be obtained if all reactants were completely converted to product under ideal conditions. The theoretical yield can be calculated by multiplying the amount of the starting reactant by the stoichiometric ratio in the balanced equation.
Theoretical yield is the amount of product that would be obtained from a chemical reaction if the reaction proceeded perfectly and all reactants were completely converted to product. In this case, the balanced equation shows that 1 mole of H3C6H5O7 reacts with 3 moles of NaHCO3 to produce 3 moles of CO2. Therefore, the theoretical yield of carbon dioxide would be 3 times the amount of H3C6H5O7 given.
Example: If 2 moles of H3C6H5O7 are given, the theoretical yield of CO2 would be 3 x 2 = 6 moles.
Note that the theoretical yield assumes ideal conditions and perfect conversion, so the actual yield may be less due to factors like incomplete reactions or side reactions.
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