Best answer

Again, hydrogen bonding is the reason. Hydrogen bonds cause water molecules to line up less efficiently in ice than in liquid water. As a result, water molecules are spaced farther apart in ice, giving ice a lower density than liquid water. A substance with lower density floats on a substance with higher density.

Answered by: Mike McKerns Date created: May 18, 2022

How does polarity affect surface tension?

Asked By: Peter B Date created: May 07, 2022

When a polar substance is put in water, the positive ends of its molecules are attracted to the negative ends of the water molecules, and vice versa. ... Because of their polarity, water molecules are strongly attracted to one another, which gives water a high surface tension.

Answered By: Svante Date created: May 07, 2022

How does alkalinity affect pH?

Asked By: gold_cy Date created: May 10, 2022

Water pH measures the amount of hydrogen (acid ions) in the water, whereas water alkalinity is a measure of the carbonate and bicarbonate levels in water. ... The higher the alkalinity of the water, the more lime it contains and therefore, the more rapidly the water can cause the growing medium pH to rise.

Answered By: Scott Evernden Date created: May 13, 2022

How does hydrogen bonding affect chemical shift?

Asked By: thatjeffsmith Date created: May 03, 2022

Protons that are involved in hydrogen bonding (this usually means -OH or -NH) are typically observed over a large range of chemical shift values. The more hydrogen bonding there is, the more the proton is deshielded and the higher its chemical shift will be.

Answered By: yckart Date created: May 06, 2022

How does pH affect the growth of microorganisms in food?

Asked By: Jan Date created: May 04, 2022

Moderate changes in pH modify the ionization of amino-acid functional groups and disrupt hydrogen bonding, which, in turn, promotes changes in the folding of the molecule, promoting denaturation and destroying activity. The optimum growth pH is the most favorable pH for the growth of an organism.

Answered By: glytching Date created: May 04, 2022

How does pH affect bacterial growth?

Asked By: RRiVEN Date created: May 13, 2022

Moderate changes in pH modify the ionization of amino-acid functional groups and disrupt hydrogen bonding, which, in turn, promotes changes in the folding of the molecule, promoting denaturation and destroying activity. The optimum growth pH is the most favorable pH for the growth of an organism.

Answered By: Shepmaster Date created: May 14, 2022

How does heat pH affect denaturation?

Asked By: Powerlord Date created: May 11, 2022

Changes in pH affect the chemistry of amino acid residues and can lead to denaturation. ... Protonation of the amino acid residues (when an acidic proton H + attaches to a lone pair of electrons on a nitrogen) changes whether or not they participate in hydrogen bonding, so a change in the pH can denature a protein.

Answered By: Egzon P. Date created: May 14, 2022

How does humidity affect a baseball?

Asked By: leftjoin Date created: May 09, 2022

Humidity actually has little effect on the resistance from air on a pitched baseball. ... However, it is actually lighter air for a baseball to travel through than dry air is. This is due to the additional molecules of the lighter weight hydrogen replacing the heavier molecules of nitrogen when air becomes more humid.

Answered By: VonC Date created: May 11, 2022

How does hydrogen peroxide affect teeth?

Asked By: Steven Date created: May 03, 2022

Tooth whiteners and oral hygiene products – such as certain toothpastes and mouth rinses – use hydrogen peroxide or carbamide peroxide for its whitening and/or disinfecting properties. Peroxide whitens teeth by passing into the tooth and reacting with the molecules that cause stains or discoloration.

Answered By: falmp Date created: May 04, 2022

Does alkalinity affect pH?

Asked By: scaisEdge Date created: May 10, 2022

Water pH measures the amount of hydrogen (acid ions) in the water, whereas water alkalinity is a measure of the carbonate and bicarbonate levels in water. ... The higher the alkalinity of the water, the more lime it contains and therefore, the more rapidly the water can cause the growing medium pH to rise.

Answered By: Stuart Marks Date created: May 13, 2022

Does the side of a penny affect how much water it can hold?

Asked By: Kendall Hopkins Date created: May 08, 2022

The heads side of a penny holds more water than the tails side. Similarly, why does a penny hold so many drops of water? Because water molecules at the surface of the water puddle attract more to one other than they do to the air molecules above them, they cling together and form a dome shape on the coin.

Answered By: blami Date created: May 08, 2022

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