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sukhopar [10]
3 years ago
6

Which element listed below is considered an alkaline earth metal?

Chemistry
1 answer:
Aleks04 [339]3 years ago
4 0
B. Magnesium. Periodic tables can help! 

:)
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"Nucleic acid was isolated by lysing cells in detergent, guanidine isothiocyanate, and DNAse, followed by extraction in an acid
Romashka [77]

Answer:

RNA

Explanation:

The nucleic isolated was quantified by 2 types of fluorescent dyes, which binds only to specific type of nucleic acid. You can find the information on the specificity of dyes on your labsheet or dye supplier's website. For our dyes, however:

  • SyBr Green II only emits fluorescent light when it binds to RNA or Single Strand DNA
  • PicoGreen only fluoresce when bound to Double Strand DNA

With these information, we know that our nucleic acid is either single strand DNA or RNA, however, it is also mentioned that

"Nucleic acid was isolated by lysing cells in detergent, guanidine isothiocyanate, and DNAse"

DNAse, which is an enzyme that breaks down DNA, destroys any extracted DNA during the process, thus, the only possible nucleic acid we have isolated is RNA

8 0
3 years ago
Which type of molecule contains two atoms bonded together
solmaris [256]

simple molecules contain two atom bonded together

5 0
3 years ago
Read 2 more answers
How can you tell if a compound is a solid, liquid, gas, or aqeous.
Andre45 [30]
<span>aqueous is the colorful one</span>

4 0
3 years ago
Elvira Walks 4 miles to the west from school and stops at the store. She then walks 3 miles south.
dalvyx [7]

Answer:

distance = 7 miles

displacement = 5 miles

Explanation:

Distance is a scalar quantity as it takes account of magnitude traveled but not the direction traveled from starting point.

The distance traveled is the sum total of distances moved

distance = 4 + 3 = 7 miles

Displacement however, is a vector and measure the shortest possible distance traveled in a given direction from the starting point.

The path of Elvis' walking forms a right-angle triangle with the hypotenuse being the displacement and the other two sides being the distance traveled west and south.

Using Pythagoras' theorem; c² = a² + b²

where c = hypotenuse and a and b are the other two sides

c² = 4² + 3²

c² = 16 + 9 = 25

√c² = √25

c = 5

Therefore, displacement = 5 miles

4 0
3 years ago
3. Why do you think the image of the pencil inside the beaker of water is different than the pencil
tia_tia [17]

Answer:

the water.

Explanation:

well the water makes things look larger than due to ( the surface of a water drop curves outwards to make a dome. this outward or convex, curature light rays inward. the result is an enlarge ment image on the eye. / makes it look larger) + more mass.

6 0
3 years ago
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