What is the equation for calculating density?
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the equation for calculating density is m÷v
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A certain skin lotion is a fine mixture of water and various oils. This lotion is cloudy and cannot be separated into oil and water by filtration or centrifuge. What type of mixture is it?
If my dog weighs 31.8 kilograms, how much would she weigh in ounces? Round your to the 1st decimal place.
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The correct option is d. attractive forces between different covalent molecules are the right response.
Intermolecular forces (IMFs) are attractive interactions between separate covalent molecules. These forces arise due to temporary imbalances in electron distribution, leading to regions of partial charge within molecules. Unlike covalent bonds that hold atoms within a molecule together, IMFs act between different molecules.
This includes forces like London dispersion forces (arising from temporary fluctuations in electron distribution), dipole-dipole interactions (between polar molecules with permanent dipoles), and hydrogen bonding (a special type of dipole-dipole interaction involving hydrogen bonded to electronegative atoms like oxygen, nitrogen, or fluorine). IMFs influence properties like boiling points, solubility, and phase changes. They're crucial in understanding the behavior of liquids and solids, particularly in cases involving non-metallic compounds.
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The correct answer is: d. attractive forces between separate covalent molecules
Intermolecular forces are the forces of attraction that exist between molecules, rather than within molecules (intramolecular forces). These forces play a crucial role in determining the physical properties of substances, such as boiling points, melting points, and solubility. The options a, b, c, and e are not correct descriptions of intermolecular forces:
a. Forces within covalent molecules that hold them together refer to intramolecular forces, such as covalent bonds, which involve the sharing of electrons between atoms within a molecule.
b. Electrostatic forces between ions are ionic bonds, which involve the transfer of electrons from one atom to another, leading to the formation of positively and negatively charged ions. This is not an example of intermolecular forces.
c. Bonds between hydrogen and oxygen atoms in water molecules refer to hydrogen bonds, which are a specific type of intermolecular force. However, this option does not encompass all types of intermolecular forces.
e. Covalent bonds within a network solid are intramolecular forces that hold the atoms together in a three-dimensional lattice, as seen in substances like diamond or quartz. This is not representative of intermolecular forces.
Therefore, the correct option is d, which correctly describes intermolecular forces as attractive forces between separate covalent molecules. These forces can include London dispersion forces (Van der Waals forces), dipole-dipole interactions, and hydrogen bonding, among others.
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B. Radius
C. Density
D. Percent oxygen
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Answer:
Correct answer is option B
Explanation:
Extensive propery:
The property which depends on the amount of matter is known as extensive properties of matter. It means if amount of a matter changes than its extensive properties will also changes for example if amount of matter is reduced than its volume will be reduced so volume is extensive property.
Extensive properies can be observed and measured.
Among the given options Radius is the option which depends on amount of matter it means if amount of matter will be large than the radius of air bubble will be large. So radius is an extensive property.
An extensive property of a bubble of air from the given options is radius. (Option B).
What is an extensive property?
An extensive property is a property that depends on the amount or size of a substance or system.
For this question of a bubble of air, the radius (B) is an extensive property because it depends on the size or volume of the bubble. As we increase the size of the bubble, the radius will also increase.
The other properties listed, temperature (A), density (C), and percent oxygen (D), are not extensive properties. Temperature and percent oxygen are intensive properties because they do not depend on the size or amount of the substance; they are inherent properties of the air within the bubble. Density is also an intensive property because it describes the mass per unit volume, which remains constant regardless of the size of the bubble.
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(2) reduction (4) transmutation
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Answer: The correct answer is Option 1.
Explanation:
Electrochemical cell is defined as the device that is used for the conversion of the chemical energy produced in a redox reaction into the electrical energy. In this cell, oxidation reaction occurs at anode and reduction reaction occurs at cathode.
For the given options:
Option 1: Oxidation reaction
Oxidation reaction is defined as the chemical reaction where a substance looses its electrons. The oxidation state of this substance gets increased and the substance gets oxidized.
Option 2: Reduction reaction
Reduction reaction is defined as the chemical reaction where a substance gains electrons. The oxidation state of this substance gets reduced and the substance gets reduced.
Option 3: Neutralization reaction
Neutralization reaction is defined as the chemical reaction where an acid reacts with a base to produce a salt and water molecule.
Option 4: Transmutation
This is defined as the process in which a nucleus is converted to another nucleus.
From the above information, at anode, oxidation reaction occurs. Thus, the correct answer is option 1.
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Answer:
It is a mixture that is uniform in both composition and properties.
Explanation:
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Answer:
Only the oxygen needs to be balanced. There are equal numbers of hydrogen and carbon
Explanation:
Given expression:
C₂H₄ + O₂ → 2H₂O + 2CO₂
The law of conservation of mass suggests that chemical equations be balanced since atoms are neither created nor destroyed in the course of a chemical reaction. In retrospect, bonds are broken and chemical species are change to another form.
From the given equation, only oxygen is not balanced. This flouts the law of conservation.
On the reactant side, we have 2 oxygen on the product, we have 6.