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What is the characteristic shape of a DNA molecule?
The characteristic shape of a DNA molecule is a double helix, which is like a twisted ladder. This structure consists of two strands of nucleotides that are twisted around each other, with the sugar-phosphate backbones forming the outer structure and the nitrogenous bases in the middle, connected by hydrogen bonds.
Is dissolving of salt a chemical change?
No, it is a physical change.
Which molecule prevents cell membrane from dissolving in water?
Nonpolar Fatty Acids
What is the smallest part of a substances?
One molecule.
Which substances is a nonpolar molecule that is not soluble in water?
Lipid
The spiral staircase structure characteristic of the DNA molecule?
Double helix
Why does the fact that water is a polar molecule contribute to the variety of substances dissolving in water?
because about a cajillion things will be attracted to either end of the poles
Why is water very effective at dissolving other polar substances?
water is an effective solvent because it is a polar molecule, it dissolves other polar substances, and it dissolves ionic compounds. that is why it is called the "universal solvent" due to the geometry of the water molecule itself
What is an insoluble molecule?
An insoluble molecule is a molecule that does not dissolve in a particular solvent or solution. This can be due to the molecule's chemical structure, which may not interact well with the solvent molecules, preventing it from dissolving.
Why chloroform not soluble in water?
Chloroform is not soluble in water because it is a nonpolar molecule, while water is a polar molecule. Polar substances like water tend to dissolve in other polar substances, and nonpolar substances like chloroform tend to dissolve in other nonpolar substances. This difference in polarity prevents chloroform from effectively mixing or dissolving in water.
What are hydrates?
They are substances having water molecules in the structure of the molecule; example: copper(II) sulfate CuSO4.5H2O.
A characteristic of a DNA molecule that is not a characteristic of a protein molecule is that the DNA molecule?
Well, isn't that just a happy little question! One characteristic of a DNA molecule that sets it apart from a protein molecule is its ability to store genetic information and pass it down through generations. DNA is like a beautiful, intricate blueprint for life, while proteins are like the talented workers that bring that blueprint to life in our bodies. Just remember, every molecule has its own special role to play in the wonderful world of science!
What is the characteristic shape of a DNA molecule?
The characteristic shape of a DNA molecule is a double helix, which is like a twisted ladder. This structure consists of two strands of nucleotides that are twisted around each other, with the sugar-phosphate backbones forming the outer structure and the nitrogenous bases in the middle, connected by hydrogen bonds.
What is a characteristic property of molecular substances?
A characteristic property of molecular substances is that they have relatively low melting and boiling points compared to ionic compounds, due to the weaker intermolecular forces between molecules. Additionally, molecular substances are formed from discrete covalently bonded molecules, allowing them to exist as discrete units.
Which element is NOT characteristic of the primary structure of proteins?
The primary structure of proteins is characterized by the linear sequence of amino acids. Therefore, the presence or absence of specific chemical bonds (like disulfide bonds) is not a defining feature of the primary structure.
Is sugar dissolving in water a chemical reaction?
No, it is a physical change. A chemical reaction involves changing a molecule(s) into something else. When dissolving sugar in water, you still have sugar and you still have water.
Is dissolving of salt a chemical change?
No, it is a physical change.
