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Roman55 [17]
3 years ago
5

There are some cells that do not have DNA. O True O false

Chemistry
2 answers:
raketka [301]3 years ago
8 0

Answer:

false

Explanation:

valkas [14]3 years ago
8 0
It’s false hope this helps
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Glycogen is _____.
IgorC [24]

Answer:

A polysaccharide found in animals.

Explanation:

Biomolecules are the important chemical compounds present in the living organisms and responsible for all the functional activities of the body. Four important biomolecules are carbohydrates, proteins, fats and lipids.

Glycogen is a carbhydrate made of the polymer of the glucose linked through the glycosidic bonds. The glycogen acts as the energy source and present in animals mainly. Glycogen is mainly stored in the liver and the skeletal muscles of the animals.

Thus, the correct answer is option (a).

4 0
3 years ago
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Find the number of photons of wavelength = 5.49×10−6 m that must be absorbed to melt 1.00 g of ice.
Misha Larkins [42]
First, we determine the energy required to melt one gram of ice. This is given by:

Energy = mass * latent heat of fusion
Energy = 1 g * 334 J/g
Energy = 334 J

Next, we use Planck's equation which is:

Energy  = number of photons * Planck's constant * speed of light / wavelength

334 = n * 6.64 x 10⁻³⁴ * 3 x 10⁸ / 5.49 x 10⁻⁶
n = 9.20 x 10²¹

9.20 x 10²¹ photons need to be absorbed by the ice.
7 0
3 years ago
Define the term valence electron and explain how to find the number of valence electrons in family one and family 2.
goblinko [34]
Valence Electron is the outermost electrons, family(Alkali) 1 has 1 valence electrons and family(Alkaline) 2 has 2 valence electrons.

Hope this helps
8 0
4 years ago
How many moles are in 4561 g of C3H7OH?
d1i1m1o1n [39]

Answer: 76.017 moles

Explanation:

3 0
3 years ago
Most of the mass of an atom comes from the (blank) and (blank)
dsp73
Protons and neutrons make up most of an atom's mass. Electrons have almost no mass.
5 0
3 years ago
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