Can anybody help me with this ?

Acylinder is filled with 2.00 moles of nitrogen, 3.00 moles of argon and 5.00 moles of helium. if the gas mixture is at stp, what is the partial pressure of the argon

Agood hypothesis includes which of the following? a: prediction b: data c: uncertainty d: conclusion

When a scientific theory has been tested and proved by the scientific community, it becomes a law