Question

kWhich of the following describes nuclear fission?

It is very difficult to control.

It involves the combining of nuclei.

It involves the nucleus of an atom changing.

Its chain reactions can be initiated by neutrons.

Answer 1

also A sample of gas has a volume of 2.4 L and a pressure of 1.2 atm. What would the pressure of the same gas sample be if the volume is reduced to 1.8 L at a constant temperature?

0.90 atm

1.6 atm

5.2 atm

3.6 atm

Answer 2

and one more sorry no one has to answer all three of course Consider the following reaction:

4NH3 (g) + 5O2 (g) Two arrows stacked on top of each other. The top arrow points to the right. The bottom arrow points to the left. 4NO (g) + 6H2O (g)

Which answer represents the equilibrium constant for this reaction?

[NH subscript three] superscript four times [O subscript two] superscript five over [NO] superscript four times [H subscript two O] superscript six

[NO] superscript four times [H subscript two O] superscript six over [NH subscript three] superscript four times [O subscript two] superscript five

[NO] superscript four times [H subscript two O] superscript six over [NH subscript three] superscript four times [O subscript two] superscript five

[NH subscript three] times [O subscript two] over [NO] times [H subscript two O]

Answer 3

I would say for the first that it would involve the nucleus of an atom changing because nuclear fission is a nuclear reaction in which a heavy nucleus splits spontaneously or on impact with another particle, with the release of energy.

Answer 4

and I would say for the second it would be .90 but don't hold me to that cause I'm not exactly sure