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arsen [322]
2 years ago
7

Students in Ms. Nye's science class were using the microscopes to make slides of various organisms: algae, moss, onion cells, hu

man cheek cells, as well as the organism seen here. They were examining cell structures to group the organisms by similarities. Several students grouped this organism with the plants they were examining because of the presence of cell walls. Another group argued: "This is a fungus not a plant, because the cells do not contain _____________."
Chemistry
2 answers:
galina1969 [7]2 years ago
8 0
The answer is chloroplast
Firlakuza [10]2 years ago
7 0

Answer:

c) Chloroplasts

Explanation: This is the correct answer on USA Test Prep

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A 40.5 g sample of aluminum is cooled 7.5°C. The specific heat capacity of aluminum is
sweet-ann [11.9K]
Q=mc\Delta T
Q= 40.5g x 0.900 J/g degree Celsius x 7.5
Q= 273.4 J.
Even if it is cooled , we use the same temperature as heating it.
3 0
3 years ago
27 g of Al will react with how much mass of O2 to produce Al2O3
snow_tiger [21]
24g 4Al+3O2=2Al2O3
27g x(g)
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X=24g
5 0
3 years ago
Why is it necessary to use models to study submicroscopic objects such as atoms and molecules
Wittaler [7]

Answer:

It is necessary to use models to study sub- microscopic objects such as atoms and molecules because they are too small to be seen.

6 0
2 years ago
When atmospheric pressure decreases, the mercury height in a barometer
Free_Kalibri [48]

Answer:

Decreases

Explanation:

The atmospheric pressure on the surface of the mercury pushes it up the evacuated tube until the downward pressure of the mercury equals the atmospheric pressure.

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The mercury height decreases.

6 0
2 years ago
Consider the hydrogen cyanide molecule, HCN. If we orient this linear molecule so it is along the x axis, what orbitals on carbo
alekssr [168]

Answer:

2s and 2pₓ  

Explanation:

The figure below shows the orbitals of HCN.

The sp orbitals on C are formed by the hybridization of its 2s orbital and its 2pₓ orbital .

2s + 2p ⟶ 2sp + 2sp

4 0
3 years ago
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