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guajiro [1.7K]
3 years ago
7

1. What controls the cell? 2. Calls can be many ____ and _____

Chemistry
1 answer:
lilavasa [31]3 years ago
4 0
Hey mate!
You stuck?

1.) The cell structure which controls the activities of the cell is the nucleus.

2.)  Cells can be many ____ and _____ :  Shapes; Sizes


Hope this helps! :)
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Carbon atoms can be identified based on the # of which subatomic particles
34kurt

Answer: protons and neutrons.

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And in addition if we know the number of neutrons we can easily find out the atomic mass of an element because

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6 0
2 years ago
Calculate the ΔHrxn for the following
Vesnalui [34]

Answer:

2 NO (g) → N2 (g) + O2 (g)

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____________________________

2NOCl (g) ⟶ N2 (g) + O2 (g) + Cl2 (g)

ΔH = [90.3 kJ x 2 x -1] +  [-38.6 kJ x -1 x 2] = -103.4 kJ

The ΔH for the reaction is -103.4 kJ

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3 years ago
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The exhaust system of the car is the excretory system that removes waste.

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Kumar is producing the photoelectric effect by using red light. He wants to increase the energy of emitted electrons. Based on t
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He has to use a different colored light at a higher frequency.
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