3 years ago

What does the nucleus do

1 answer:

4 0

<span>The nucleus is the organelle present in eukaryotic cells with the main function in the control of all cell activities and maintaining the gene integrity. Namely, it contains the genetic material of the cell in the form of chromosomes (DNA molecules in complex with proteins). It is enclosed by the nuclear membrane which regulates the movement of proteins and RNA in and out of the nucleus.</span>

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The wheels of a car are able to spin due to the combustion of gasoline inside the car's engine. what type of energy transfer bes

REY [17]

I believe it is C, Chemical energy because of the changes in the gasoline burning, and mechanical energy because the wheels are moving.

7 0

2 years ago

The number of significant figures in 0.000820 g is?

lubasha [3.4K]

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2 years ago

The balanced reaction equation for combustion of heptane, C7H16, is

Allisa [31]

Answer: m = 11.2 g C7H16

Explanation: First convert the mass of CO2 to moles. Then do the mole ratio between CO2 and C7H16 which is 7:1. Finally convert the moles of C7H16 to the mass of C7H16.

Solution attached.