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Contact [7]
3 years ago
14

True or False? Buoyant forces act on objects that are only floating in air.

Biology
1 answer:
Marizza181 [45]3 years ago
6 0

Answer:

False

Explanation:

Buoyant forces act on objects that are submerged in fluids. This includes gases and liquids.

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Beer has a ph of 3 therefore its h+ concentration is
sergeinik [125]
PH = - log [H+]
Transpose and solve for H+
3 = - log [H+]
H + =  10^{(-3)}
       =  0.001 M
8 0
3 years ago
Which of the following is NOT a characteristic of all living things?
Licemer1 [7]
The Characteristics of life are growth, reproduction, homeostasis, sense and respond to stimuli, obtain and use energy, made of cells, adapt and evolve. 
7 0
3 years ago
Amylase catalyzes a reaction with starch to directly create _______.
mario62 [17]

Maltose is produced instantly when amylase reacts with starch.

Starch is a polysaccharide molecule made of glucose units. The chemical formula of the starch is written as (C₆H₁₀O₅)ₙ. The starch consists of amylose and amylopectin. The glucose units in this starch are linked with the help of two kinds of bonds α 1,4 glycosidic linkages and α 1,6 glycosidic linkages.

This starch molecule is first hydrolyzed into shorter polysaccharides, dextrins, and maltose with a help of an enzyme called amylase. The maltose can be further hydrolyzed into glucose units with the help of the maltase enzyme.

Therefore, the blank can be filled with maltose.

To know more about amylase:

brainly.com/question/2878489

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7 0
1 year ago
Explain how a crime lab could use paper chromatography to determine if lipstick found at a crime scene matched the lipstick of a
FromTheMoon [43]

Explanation:

The lipstick from the crime would be crushed and dissolved in an appropriate liquid solvent. The lipstick would then be placed in one of the ink spots on the starting / base line of the paper. Another spot would be created for the lipstick with which it is being compared with.

The paper chromatogram would then be placed vertically on a solvent that acts as the mobile phase. After some time, when the solvent reaches the solvent front  of the paper chromatography, by capillary action, the chromatogram can be removed and left to dry.

Bands will have appeared on the chromatography paper formed from the different components of the lipstick. The bands of the lipstick from the crime scene and that with which it is being compared to are observed. If the bands are all aligned, horizontally, then this means it is a complete match. The lipstick must have been the same used at the crime scene.

Learn More:

For more on paper chromatography check out;

brainly.com/question/13232854

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7 0
3 years ago
As a ribosome translocates along an mrna molecule by one codon, what happens after it?
erastova [34]

Answer:

The tRNA is released from the E site of the ribosome and the elongation process finishes while the termination process starts.

Explanation:

When the translocation process is finished the tRNA that is in the E site  of the ribosome is released and the A site of the ribosome reads a stop codon in the mRNA in order to finish the elongation process and start with the termination process.  In the termination process  a termination factor joins the stop codon, the ribosomal subunits split apart, the protein and the tRNA dissociate from one another and the tARN is not in the P site of the ribosome anymore.

4 0
3 years ago
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