Answer:
liters
Explanation:
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Answer:
LITERS (B)
Explanation:
An Arrhenius acid refers to a component, which dissociates in water to produce hydrogen ions, or it can also be stated as that the acid enhances the concentration of hydrogen ions in an aqueous solution. On the other hand, an Arrhenius base refers to a component, which gets dissociate in water to produce hydroxide ions, or it can be said that a base enhances the concentration of hydroxide ions in an aqueous solution.
Therefore, an aqueous solution of lithium hydroxide comprising hydroxide ions as the sole negative ion in the solution is classified as an Arrhenius base.
B. 6
C. 2
D. 10
Answer : The correct option is, (A) 8
Explanation :
Octet rule : It is the tendency of atoms to have eight electrons in the valence shell. When the atoms have fewer than eight electrons then they tend to react and form the more stable compounds.
Or we can say that the atoms attempt to get a noble gas electron configuration, which is eight valence electrons.
For example : As we know that the sodium has one valence electron, so if giving it up then the result in the same electron configuration as the neon and chlorine has seven valence electrons, so if it takes one it will have eight and the result in the same electronic configuration as the argon.
Hence, the correct option is, (A) 8
Hydrocarbons are organic compounds which contain hydrogen, H and carbon, Conly (option B)
Hydrocarbons special class of organic compounds that contains only carbon (C) and hydrogen (H).
Hydrocarbons are classified into:
Generally, hydrocarbons are group into different homologous series. Some of which includes:
All of the above have only carbon and hydrogen in their structural formula.
Thus, with the above information, we can conclude that hydrocarbons contains H and C only (option B)
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Complete question:
Hydrocarbons are organic compounds which contain
a. H-H
b. H and C only
c. H, C and H₂O
B. contain carbon, hydrogen, and oxygen respectively in a 1:2:1 ratio.
C. are produced by living organisms.
D. dissolve in water.
Organic molecules always contain carbon. They need not always be produced by living organisms and do not necessarily dissolve in water. Moreover, they are not restricted by the composition or ratio of other elements.
The answer to this question pertains to organic molecules. Organic molecules are a type of molecules that always contain carbon. This is represented by option A. This is not restricted by the presence of certain elements or the ratio in which they exist such as hydrogen and oxygen (1:2:1 ratio as mentioned in option B). The notion that organic molecules are produced only by living organisms (option C) is not entirely accurate either. Although they are predominantly found in and produced by living organisms, they can also be synthesized in a laboratory setup. Option D states that organic molecules always dissolve in water, which is not the case, as many organic compounds are
hydrophobic, meaning they repel or fail to mix with water. Therefore, the most accurate statement is A: organic molecules always contain carbon.
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B- The electrons spend more time around the oxygen atom because oxygen is more electronegative than hydrogen.
C- There is a partial positive charge on each hydrogen atom and two partial negative charges on the oxygen atom in a water molecule.
D- Attractions form between opposite partial charges.
Answer:- Water is an electronegative molecule.
Explanation:
A molecule cannot be electronegative. Rather the atoms in a molecule may be electronegative. This first statement does not account for the hydrogen bonding in water at all because it is incorrect. However, the other statements in the question sheds more light on the nature of hydrogen bonding in water molecule.
Options B, C, and D are correct explanations for why water molecules form hydrogen bonds.
The correct option that does not help to explain why water molecules form hydrogen bonds is A- Water is an electronegative molecule. Hydrogen bonds form between a hydrogen atom in one water molecule and an electronegative atom, such as oxygen or nitrogen, in another water molecule. This attraction occurs because the electronegative atom pulls the shared electrons closer to itself, creating a partial positive charge on the hydrogen atom. The presence of partial positive and negative charges on the molecule is crucial for hydrogen bond formation. Therefore, options B, C, and D all contribute to explaining why water molecules form hydrogen bonds.
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