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Why does an ice cubes volume expand?
Ice expands because more hydrogen bonds are formed as water cools. Heat is given off, more hydrogen bonds are formed, and water molecules tend to stick together. The way water molecules link together is open, so more space is formed as ice forms, causing ice to expand.
How a solution is formed?
A solution is formed as individual molecules from the solid are surrounded by molecules of solvent and then diffusing away from the surface of the solid being dissolved.
What is Formed when two atoms bond covalently?
i am doing the same worksheet right now.... Molecule
What happens to the water particles when water freezes?
As water begins to freeze and formice , thewater molecules stop moving because they formhydrogen bonds with each other. Hydrogen bonds are weak bonds between hydrogen atoms that are not full bonds, but are able to keep substances together (eg. DNA). This produces a rigid, crystalline structure. However, even if the molecules are held firmly in place, they are not as tightly packed as they are when it is liquid, so that makes ice less dense than water. Because ice is less dense than water, in the winter, only the top 'layer' in ponds and lakes every freeze, so that keeps heat under the surface and allows for life to continue. If ice were more dense than water, then life will not be able to survive throughout winter, because the whole lake/pond would completely freeze; there will be no water underneath ice in that case. But thankfully ice is less dense than water and that will not happen
What is a hypothetical four stage sequence for how life could have first developed on Earth?
firstly small organic molecules formed from simple molecules.secondly these small molecules joined together into proteins and nucleic acids.thirdly molecules that could copy themselves such as RNA provided a way for molecular information to be inherited.fourthly,various organic molecules such as RNA and polypeptides formed "pre cells"
Are hydrogen bonds formed between any molecules that contain hydrogen?
No, hydrogen bonds are formed specifically between molecules containing hydrogen bonded to highly electronegative atoms like oxygen, nitrogen, or fluorine. This creates a dipole-dipole interaction that leads to the formation of hydrogen bonds.
Why is water formed?
Water is formed due to the strong attraction between the hydrogen and oxygen molecules.
What bond is found between water molecules?
Hydrogen bonds are found between water molecules. These bonds are formed between the oxygen atom of one water molecule and a hydrogen atom of another water molecule.
Weak bond formed between water molecules due to their polarity?
Hydrogen Bond
When alcohol dissolved in water why temperature of alcohol is increased?
The hydrogen bonds between water molecules and respectively hydrogen bonds between ethanol molecules are broken by mixing; new hydrogen bonds are formed between water and ethanol molecules - this second process is exothermic.
What is the difference between elements and nutrients?
Nutrients are chemical compounds; they contain molecules - and the molecules are formed from chemical elements.
What type of bond is formed between two water molecule?
the bond between two water molecule is hydrogen bond.
Is a hydrogen bond the strongest that formed between molecules?
No, hydrogen bonds are weaker than covalent or ionic bonds. Hydrogen bonds are attraction between a hydrogen atom in a polar molecule and an electronegative atom (such as oxygen or nitrogen) in another molecule.
Which type of chemical bonds form between water mlecules?
The most important intermolecular bond between water molecules is the hydrogen bond. Hydrogen bonds are formed between the partially positive hydrogen atoms of one molecule, and the partially negative oxygen atoms other molecules.
Why sugar is matter?
Sugar is formed from molecules and these molecules contain atoms.
Does water have more hydrogen bonds than salt water?
Yes, pure water has more hydrogen bonds because hydrogen bonds are formed between water molecules. In salt water, some water molecules are displaced by salt ions, reducing the number of hydrogen bonds between water molecules.
Can CH3COCH3 form a hydrogen bonds?
No, acetone (CH3COCH3) cannot form hydrogen bonds with itself because it does not contain any hydrogen atoms bonded directly to highly electronegative atoms such as nitrogen, oxygen, or fluorine. Hydrogen bonds are formed between hydrogen atoms attached to these electronegative atoms and partially negatively charged atoms in other molecules.
