WILL GIVE BRANLIest NEED NOW Which two PARTICLES are present in the nucleus of an alom?
O Electrons and neutrons
O Electrons and molecules
O Protons and neutrons
O Protons and electrons

protons and neutrons

Explanation:

protons and neutrons are in the nucleus of an atom, while electrons circle around the nucleus.

consider the reaction below.

 no rx

at 500 k, the reaction is at equilibrium with the following concentrations.

[pci5]= 0.0095 m

[pci3] = 0.020

[ci2] = 0.020 m

what is the equilibrium constant for the given reaction?

0.042

0.42

2.4

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