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Rzqust [24]
3 years ago
14

What is it called when the sun is directly overhead the tropic of cancer

Biology
1 answer:
Jet001 [13]3 years ago
4 0
It is called Summer Solstice.
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HELP QUICK!!
drek231 [11]

Answer:

B.) Carbon and Hydrogen

Explanation:

Lactose is a carbohydrate, and carbohydrates are primarily made of carbon and hydrogen chains.

4 0
2 years ago
Match the things please
notka56 [123]
Hey all I gotta say is look up the definition and you’ll find the answers it’s not that complicated
7 0
2 years ago
Most fertilizers contain ammonia. Ammonia (NH3) forms when hydrogen reacts with nitrogen. Which balanced equation represents amm
Lana71 [14]
<span>The balanced equation for ammonia (NH3) is 3H2 + N2 ď 2NH3. This equation starts from H2 + N2 ď NH3. We have 1 N and 3 H on the right side (the product side) of the equation, so we multiply each by 2 to get 2 N and 6 H. We do this so that we don’t have an odd number of H atoms. We then balance the left side (the reactant side) of the equation with the right side, N is already balanced, but we have to multiply H by 3 to get 6 H atoms (to match the right side of the equation.</span>
6 0
3 years ago
Investigators wish to purify an enzyme—a serine protease—using affinity chromatography. They attach to the matrix of an affinity
Dennis_Churaev [7]

Answer:

After this treatment, the investigators should expect to get a mixture of the desired enzyme, plus fragments of the peptide used to desorb the enzyme in question.

This would be the result of using a peptide as a desorption solution when the desired protein is a protease,

Assuming that the protease retains its activity in the medium in question, and that the peptide can act as a substrate (which would make sense), as the peptide solution is added, it will interact with and bind to the antibody, but some molecules will also interact with the active site of the enzyme as it desorbs and passes through, culminating on the elution of the hydrolized part of the peptide along with the enzyme.

7 0
3 years ago
Water's ability to dissolve a wide variety of molecules is important, but more important is the hydrophobic effect, which drives
NeX [460]

Answer and explanation;

The hydrophobic effect is the observed tendency of non-polar substances to aggregate in an aqueous solution and exclude water molecules. Hydrophobic interaction is mostly an entropic effect originating from the disruption of highly dynamic hydrogen bonds between molecules of liquid water by the non-polar solute.

Introduction of such a non-hydrogen bonding surface into water causes disruption of the hydrogen bonding network between water molecules.

Water dissolves molecules (proteins and nucleic acids) that display on their solvent-accessible surfaces groups that can h-bond [hydroxyl, carbonyl, ester groups; they're polar uncharged...also charged groups; protonated amines, carboxylates and phosphate ethers.

Molecules with internal h-bonds dissolve in water, some/all internal h-bonds may be in dynamic exchange with h-bonds in water .

Polar nature of water contributes to ability to dissolve non-ionic polar organic molecules, such as phenols, esters, amides; have large dipole moments and interaction with water dipole promotes solubility in water.

3 0
3 years ago
Read 2 more answers
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