It’s mass number would be 5 as it’s the protons and the neutrons added together
In binary ionic compounds the name of the cation (Metal) is first, so that’s how you know.
1 2 2 1 is the answer so u are correct
The best answer among the following choices would be A) since the other options are NOT nonrenewable energy sources.
The pressure of gas will increase because gaseous state is the final state and even if the heat added is evaporating some more gas is still added. It also depends on the temperature of heat added, if the temperature doesn't change the it's most likely for the pressure to be stable...
Hope it helps
