<u>True</u>, the new moon is invisible to Earth because it's unilluminated
side is facing the earth
<em>While the illuminated side is facing the sun.</em>
Hope that helps!
Answer:
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
Explanation:
id if this helped but
Water is the compound must be present along with urea for the break down of urea.Thus, option B is correct.
<h3>What does urea break down into?</h3>
Urea and water combined together and results into the production of carbon dioxide and ammonia with the help of urease enzyme.
Urea + water = Carbon dioxide+ ammonia
Breakdown of urea occurs in a cycle known as urea cycle and it has five important steps:
- Formation of carbamoyl phosphate
- Synthesis of citrulline
- Cleavage of argininosuccinate
- Glucogenic and ketogenic amino acids
- Oxidation of Carbon skeleton of amino acids
Therefore,water is the compound must be present during the process of break down of urea.Thus, option B is correct.
Learn more about break down of urea here:
brainly.com/question/11486679
#SPJ4
Your question is incomplete,but most probably your full question was,
What other compound must be present along with urea for the urease enzyme to break down urea?
A.ammonia
B.water
C. pyruvic acid
D. carbon dioxide
Explanation:
nucleus
Over 99.9 percent of an atom's mass resides in the nucleus. The protons and neutrons in the center of the atom are about 2,000 times heavier than the electrons orbiting around it.
hope it helps!
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
brainly.com/question/364792
#LearnWithBrainly
