What 2 predictions can you make about Argon's (Period 3, Group 18) properties based on its location on the periodic table?

It is very reactive

It is nonmetal that does not conduct electricity well

It is a metal and conducts electricity well

It is very unreactive

Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies. molten iron has a density of 7.0g/cm cubed. in its solid state, iron has a density of 8.0g/cm cubed.

James is trying to prove newton's 2nd law of motion. he tries to move four different objects with different masses, shapes, and sizes from point a to point b. the objects are a toy car, a car, a refrigerator, and a kitchen table. after some experimentation, he finds that force is dependent on the mass of the object, rather than it's size or shape. the object that takes the most force to move is the

Due in 40 explain in terms of frame of reference if you’re inside a moving train everything on the outside can seem to be moving